El-Orany, Faisal A A
2011-01-01
In [J.S. Shaari, M. Lucamarini, M.R.B. Wahiddin, Phys. Lett. A 358 (2006) 85-90] the deterministic six states protocol (6DP) for quantum communication has been developed. This protocol is based on three mutually unbiased bases and four encoding operators. Information is transmitted between the users via two qubits from different bases. Three attacks have been studied; namely intercept-resend attack (IRA), double-CNOT attack (2CNOTA) and quantum man-in-the-middle attack. In this Letter, we show that the IRA and 2CNOTA are not properly addressed. For instance, we show that the probability of detecting Eve in the control mode of the IRA is 70% instead of 50% in the previous study. Moreover, in the 2CNOTA, Eve can only obtain 50% of the data not all of it as argued earlier.
Feng, F.; Ma, J. P.; Wang, Q.
2009-06-01
A new method is proposed to calculate wave functions in kT-factorization in [H.-n. Li, S. Mishima, Phys. Lett. B 674 (2009) 182, arXiv:0808.1526] as a comment about our paper [F. Feng, J.P. Ma, Q. Wang, Phys. Lett. B 674 (2009) 176, arXiv:0807.0296]. We point out that the results obtained with the method are in conflict with the translation invariance and depend on the chosen contours for loop-integrals. Therefore, the method is in principle unacceptable and the results with the method cannot be correct.
Kudryashov, Nikolai A.
2009-01-01
Using Exp-function method Ozis and Koroglu [T. Ozis, C. Koroglu, Phys. Lett. A 372 (2008) 3836] have found exact "solutions" of the Fisher equation. In this comment we demonstrate that all these solutions do not satisfy the Fisher equation. The efficiency of application of Exp-function method to sea
Yau, H. -F.; Liu, J.-P.; Ke, B; Kuo, C. -H.; Ye, Z.
2003-01-01
Recently, Zhang et al. (Phys. Rev. Lett. 91, 157404 (2003)) have demonstrated that an amphoteric refraction, i. e. both positive and negative refraction, may prevail at the interface of two uniaxial anisotropic crystals when their optical axes are in different directions. The authors subsequently made a correspondence between such a refraction with the negative refraction expected for Left Handed Materials (LHMs). Here we comment that the amphoteric refraction can be observed even with one un...
Geng, Chao-Qiang; Tsai, Lu-Hsing
2015-01-01
We revisit the calculation of the three-loop diagrams for the radiative neutrino mass generation and consider some relevant constraints on the model recently proposed by L. Jin {\\it et al} [Phys. Lett. B 741 (2015) 163]. We find that the previous approximation is inappropriate due to the neglect of some important contributions, and the benchmark point proposed can neither give rise to enough neutrino masses nor accommodate these additional constraints, such as the validity of the perturbation theory, the electroweak precision measurements, and the neutrinoless double beta decays.
Ley, B L Moreno
2011-01-01
We pinpoint that the work about "a new exactly solvable quantum model in $N$ dimensions" by Ballesteros et al. [Phys. Lett. A {\\bf 375} (2011) 1431, arXiv:1007.1335] is not a new exactly solvable quantum model since the flaw of the position-dependent mass Hamiltonian proposed by them makes it less valuable in physics.
Shalchi, M. A.; Yamashita, M. T.; Hadizadeh, M. R.; Frederico, T.; Tomio, Lauro
2017-08-01
Numerical results for the function (1 -EK /E0) kcot δ0R, as given in Phys. Lett. B 764 (2017) 196, are revised. Fig. 2 and Tables 2 and 3 should be replaced by the following corresponding figure and tables. The conclusions of the original paper remain unchanged.
M.A. Shalchi
2017-08-01
Full Text Available Numerical results for the function (1−EK/E0kcotδ0R, as given in Phys. Lett. B 764 (2017 196, are revised. Fig. 2 and Tables 2 and 3 should be replaced by the following corresponding figure and tables. The conclusions of the original paper remain unchanged.
Svidzinsky, Anatoly; Chang, Jun-Tao
2008-08-01
In a recent Letter [R. Friedberg, J.T. Manassah, Phys. Lett. A 372 (2008) 2514] Friedberg and Manassah argue that effect of virtual photons has serious consequences for large atomic samples. Here we show that such effect is negligible for evolution of a uniformly excited atomic state prepared by absorption of a single photon.
Flatté, Michael E.; Hall, Kimberley C.
2006-01-01
A recent e-print (cond-mat/0604532) presented a proposed Comment to Applied Physics Letters on our publication Appl. Phys. Lett. 88, 162503 (2006), cond-mat/0603260. Here is our Response. As the proposed Comment has now been rejected by Applied Physics Letters, neither the Comment nor the Response will be published in Applied Physics Letters in this form.
Yamashita, M. T.; Marques de Carvalho, R. S.; Frederico, T.; Tomio, Lauro
2012-08-01
Relevant to experimental investigations on the 22C properties, we are correcting numerical results presented in [M.T. Yamashita, R.S. Marques de Carvalho, T. Frederico, L. Tomio, Phys. Lett. B 697 (2011) 90], updating our estimate for the two-neutron separation energy, and adding the charge radius prediction for this halo nucleus with respect to 20C: √{ - } ≳ 0.9 fm.
Woetmann Nielsen, C.
Brug af mere miljø- og resourcevenlige materialer, stigende varmeisoleringskrav samt ønsker om at skabe en afvekslende arkitektur gør, at der fortsat udvikles nye lette ydervægskonstruktioner. Udføres samlinger, knudepunkter og indbygninger af døre, vinduer etc. korrekt, vil disse vægtyper have l...
McAllister, Ben T.; Parker, Stephen R.; Tobar, Michael E.
2016-10-01
A recent comment highlights a discussion at the PATRAS Workshop on Axions, WIMPs and WISPs relating to a recent publication. We respond to this comment, and detail a calculation error in the original letter.
Stöhr, J.; Scherz, A.
2016-01-06
X-ray absorption by matter has long been described by the famous Beer-Lambert law. Here we show how this fundamental law needs to be modified for high-intensity coherent x-ray pulses, now available at x-ray free electron lasers, due to the onset of stimulated elastic forward scattering. We present an analytical expression for the modified polarization-dependent Beer-Lambert law for the case of resonant core-to-valence electronic transitions and incident transform limited x-ray pulses. Upon transmission through a solid, the absorption and dichroic contrasts are found to vanish with increasing x-ray intensity, with the stimulation threshold lowered by orders of magnitude through a super-radiative coherent effect. Our results have broad implications for the study of matter with x-ray lasers.
Erratum: Observation of Tri-photon K-Shell X Rays [Chin. Phys. Lett. 23 (2006)826
CHENG Yao; XIA Bing
2006-01-01
@@ The reported two peaks near 65.1 keV and 66.9 keV are not only the tri-photon coincidence counts but also the single photon of K-shell x-rays. These peaks contain two major decay components, i.e. fast τ0/3 decay and slow 5.8-day decay. The 5.8-day decay corresponds to the 195mPt transition and the τ0/3 decay corresponds to the reported tri-photon effect.
Erratum: Finite-Amplitude Vibration of a Bubble [Chin. Phys. Lett. Vol.20, No.1 (2003) 80
钱祖文; 肖灵
2003-01-01
@@ The formula on the right column of p 81 should beT1pf(R3fmin-a3/Ps(R3smin-a3)s=5×1017×0.22/10 10×50.5 Ts=202×10 4Ts,and the values on the abscissae of Figs. 4(b) and 4(c) should be modified as shown here, and all conclusions are unaffected.
Expanding the PhysTEC Coalition
Stein, Fredrick
2003-04-01
The Physics Teacher Education Coalition (PhysTEC) is a community of physics departments representing scientists and educators at institutions dedicated to improving the science preparation of future K-12 teachers. Now in its second year, PhysTEC requires physics and education faculty to work together to provide an education for future teachers that emphasizes interactive engagement and a student-centered approach to learning science. The first six Coalition members are the physics departments at Ball State University, Oregon State University, University of Arizona, University of Arkansas, Western Michigan University, and Xavier University of Louisiana. PhysTEC is creating a broad, active Coalition of physics departments that have implemented or are interested in implementing one or more of the PhysTEC Program Components. · A long-term, active collaboration among the physics department, the department of education, and the local schools. · A Teacher-in-Residence (TIR) program that provides for a full-time participant in assisting faculty in course revisions. · The redesign of physics courses based on results from physics education research. · The redesign of elementary and secondary science methods courses with an emphasis on inquiry-based teaching and learning. · The establishment of a mentoring program to provide a valuable induction experience for novice science teachers. · The participation of physics faculty in the improvement and expansion of school experiences. www.phystec.org
Yamgoué, Serge Bruno; Pelap, François Beceau
2016-05-01
We revisit the derivation of the equation modeling envelope waves in a discrete nonlinear electrical transmission line (NLTL) considered a few years back in Physics Letters A 373 (2009) 3801-3809. Using a combination of rotating wave approximation and the Gardner-Morikawa transformation, we show that the modulated waves are described by a new type of extended nonlinear Schrödinger equation. In addition the expressions of several coefficients of this equation are found to be strongly different from those given earlier. As a consequence, key relationships between these coefficients that sustained the previous analysis are broken.
Naumis, Gerardo G.
2016-10-01
By error, in the last version of the manuscript it was deleted in Section 3 that the self-similar properties of the butterfly topological map was worked out by Indu Satija (private communication) in 2014. Some aspects can be found in the Archives, titled "Topology and Self-Similarity of the Hofstadter Butterfly", see http://arxiv.org/abs/1405.0263.
Chao-Qiang Geng
2015-05-01
Full Text Available We revisit the calculation of the three-loop diagrams for the radiative neutrino mass generation and consider some relevant constraints on the model recently proposed by Jin et al. (2015 [1]. We find that the previous approximation is inappropriate due to the neglect of some important contributions, and the benchmark point proposed can neither give rise to enough neutrino masses nor accommodate these additional constraints, such as the validity of the perturbation theory, the electroweak precision measurements, and the neutrinoless double beta decays.
Andersen, Anders; Reichelt, Christian; Ahl, Sonja Rosenlund; Lautrup, Benny; Ellegaard, Clive; Levinsen, Mogens T; Bohr, Tomas
2014-01-01
In a paper from 2006, Couder and Fort [1] describe a version of the famous double slit experiment performed with drops bouncing on a vibrated fluid surface, where interference in the particle statistics is found even though it is possible to determine unambiguously which slit the "walking" drop passes. It is one of the first papers in an impressive series, showing that such walking drops closely resemble de Broglie waves and can reproduce typical quantum phenomena like tunneling and quantized states [2-13]. The double slit experiment is, however, a more stringent test of quantum mechanics, because it relies upon superposition and phase coherence. In the present comment we first point out that the experimental data presented in [1] are not convincing, and secondly we argue that it is not possible in general to capture quantum mechanical results in a system, where the trajectory of the particle is well-defined.
Mansuripur, Masud
2012-01-01
In a recent paper, W. She, J. Yu and R. Feng reported the slight deformations observed upon transmission of a light pulse through a fairly short length of a silica glass nano-fiber. Relating the shape and magnitude of these deformations to the momentum of the light pulse both inside and outside the fiber, these authors concluded that, within the fiber, the photons carry the Abraham momentum. In my view, the authors' claim that they have resolved the Abraham-Minkowski controversy surrounding the momentum of photons inside dielectric media is premature. A correct interpretation of the experiments of She et al requires precise calculations that would properly account not only for the electromagnetic momentum (both inside and outside the fiber) but also for the Lorentz force exerted on the fiber by the light pulse in its entire path through this nano-waveguide.
Campbell, C. M.; Aoi, N.; Bazin, D.; Bowen, M. D.; Brown, B. A.; Cook, J. M.; Dinca, D.-C.; Gade, A.; Glasmacher, T.; Horoi, M.; Kanno, S.; Motobayashi, T.; Riley, L. A.; Sagawa, H.; Sakurai, H.; Starosta, K.; Suzuki, H.; Takeuchi, S.; Terry, J. R.; Yoneda, K.; Zwahlen, H.
2007-11-01
Since the acceptance of this Letter, we have been reminded that enhanced collectivity was predicted in 40-42Si in Ref. [40] by Grevy et al. based on a QRPA analysis of the β-decay halflives of these isotopes. We regret this oversight. Furthermore, a Letter on the first gamma-ray spectroscopy of 42Si [41] was published after the acceptance of the present Letter. This new experiment found a lower 21+ energy in 42Si than is found in 40Si, pointing to enhanced collectivity and a breakdown of the N = 28 shell closure.
Parrott, Stephen
2011-01-01
The abstract of the paper mentioned in the title, called DAJ below, states: "We introduce contextual values as a generalization of the eigenvalues of an observable that takes into account both the system observable and a general measurement procedure. This technique leads to a natural definition of a general conditioned average that converges uniquely to the quantum weak value in the minimal disturbance limit." A counterexample to the claim of the last sentence was presented in arXiv:1102.4407v6, a 32-page paper discussing various topics related to DAJ. The counterexample relied on a fairly complicated solution of a system of linear equations with algebraic coefficients, and so was not entirely intuitive. The second half of the present note gives a simplified counterexample, all of whose steps can be verified mentally. The first half summarizes the main ideas of DAJ.
Larranaga, Alexis; Cardenas-Avendano, Alejandro; Torres, Daniel Alexdy
2015-07-01
This article has been retracted: please see Elsevier Policy on Article Withdrawal. This article has been retracted at the request of the Editor-in-Chief. The authors have plagiarized part of a paper that had already appeared in Adv. High Energy Physics, P. Nicolini, A. Orlandi, E. Spallucci, The Final Stage of Gravitationally Collapsed Thick Matter Layers, Vol 2013 (2013), Article ID 812084 http://dx.doi.org/10.1155/2013/812084. One of the conditions of submission of a paper for publication is that authors declare explicitly that their work is original and has not appeared in a publication elsewhere. Re-use of any data should be appropriately cited. As such this article represents a severe abuse of the scientific publishing system. The scientific community takes a very strong view on this matter and apologies are offered to readers of the journal that this was not detected during the submission process.
High energy neutrinos from astrophysical accelerators of cosmic ray nuclei
Anchordoqui, Luis A.; Hooper, Dan; Sarkar, Subir; Taylor, Andrew M.
2008-02-01
Ongoing experimental efforts to detect cosmic sources of high energy neutrinos are guided by the expectation that astrophysical accelerators of cosmic ray protons would also generate neutrinos through interactions with ambient matter and/or photons. However, there will be a reduction in the predicted neutrino flux if cosmic ray sources accelerate not only protons but also significant numbers of heavier nuclei, as is indicated by recent air shower data. We consider plausible extragalactic sources such as active galactic nuclei, gamma ray bursts and starburst galaxies and demand consistency with the observed cosmic ray composition and energy spectrum at Earth after allowing for propagation through intergalactic radiation fields. This allows us to calculate the expected neutrino fluxes from the sources, normalized to the observed cosmic ray spectrum. We find that the likely signals are still within reach of next generation neutrino telescopes such as IceCube.PACS95.85.Ry98.70.Rz98.54.Cm98.54.EpReferencesFor a review, see:F.HalzenD.HooperRep. Prog. Phys.6520021025A.AchterbergIceCube CollaborationPhys. Rev. Lett.972006221101A.AchterbergIceCube CollaborationAstropart. Phys.262006282arXiv:astro-ph/0611063arXiv:astro-ph/0702265V.NiessANTARES CollaborationAIP Conf. Proc.8672006217I.KravchenkoPhys. Rev. D732006082002S.W.BarwickANITA CollaborationPhys. Rev. Lett.962006171101V.Van ElewyckPierre Auger CollaborationAIP Conf. Proc.8092006187For a survey of possible sources and event rates in km3 detectors see e.g.,W.BednarekG.F.BurgioT.MontaruliNew Astron. Rev.4920051M.D.KistlerJ.F.BeacomPhys. Rev. D742006063007A. Kappes, J. Hinton, C. Stegmann, F.A. Aharonian, arXiv:astro-ph/0607286.A.LevinsonE.WaxmanPhys. Rev. Lett.872001171101C.DistefanoD.GuettaE.WaxmanA.LevinsonAstrophys. J.5752002378F.A.AharonianL.A.AnchordoquiD.KhangulyanT.MontaruliJ. Phys. Conf. Ser.392006408J.Alvarez-MunizF.HalzenAstrophys. J.5762002L33F.VissaniAstropart. Phys.262006310F.W.SteckerC.DoneM.H.SalamonP.SommersPhys
Colmenero, J.
2013-05-01
In a recent paper by Ngai and Capaccioli ["Unified explanation of the anomalous dynamic properties of highly asymmetric polymer blends," J. Chem. Phys. 138, 054903 (2013), 10.1063/1.4789585] the authors claimed that the so-called coupling model (CM) provides a unified explanation of all dynamical anomalies that have been reported for dynamically asymmetric blends over last ten years. Approximately half of the paper is devoted to chain-dynamic properties involving un-entangled polymers. According to the authors, the application of the CM to these results is based on the existence of a crossover at a time tc ≈ 1-2 ns of the magnitudes describing chain-dynamics. Ngai and Capaccioli claimed that the existence of such a crossover is supported by the neutron scattering and MD-simulation results, corresponding to the blend poly(methyl methacrylate)/poly(ethylene oxide), by Niedzwiedz et al. [Phys. Rev. Lett. 98, 168301 (2007), 10.1103/PhysRevLett.98.168301] and Brodeck et al. [Macromolecules 43, 3036 (2010), 10.1021/ma902820a], respectively. Being one of the authors of these two papers, I will demonstrate here that there is no evidence supporting such a crossover in the data reported in these papers.
Research-based resources on PhysPort
Sayre, Eleanor
2017-01-01
PhysPort (http://physport.org) is a website that supports physics faculty in implementing research-based teaching practices in their classrooms. We provide expert recommendations and practical information about teaching methods and assessment. The PhysPort Data Explorer is an intuitive online tool for physics faculty to analyze their assessment data. Faculty upload their students' responses using our secure interface. The Data Explorer matches their pre/post data, scores it, compares it to national data, and graphs it in an interactive and intuitive manner. The Periscope collection on Physport brings together classroom video of students working groups with professional development materials for faculty, pre-service teachers, and learning assistants. To support PhysPort's development efforts, we conduct research on faculty needs around teaching and assessment, secondary analysis of published PER studies, and primary analysis of assessment data. In this talk, I'll introduce some of PhysPort's research-based resources and the research results which support them.
Numerical Study of Low-Loss Cross Lett-Handed Metamaterials at Visible Frequency
ZHU Wei-Ren; ZHAO Xiao-Peng
2009-01-01
We present a numerical study of Lett-handed metamaterials (LHMs) composed of double cross pairs at visible frequency. The S-parameter retrieval method is adopted to confirm the negative refractive characteristic of this design. Compared with fishnet LHMs, the proposed cross LHMs have a much lower loss, which will greatly facilitate practical applications. It is also found that, with the same size of resonant ceils, the cross LHMs have a higher frequency than fishnet LHMs, which is explained using a simple effective LC circuit model.
THE MOTIVE STRUCTURE OF THE PLAY “AUGUST: OSAGE COUNTY” BY TR. LETTS
Blinova M. P.
2015-06-01
Full Text Available The analysis of the motive structure’s features in the play “August: Osage County” by a modern American writer Tr. Letts has been reviewed in this article. His drama is based on a compound of mass and elite, a playing and a moral. It allows to avoid the text’s tendentiousness and to keep the content. In the play “August: Osage County” Tr. Letts examines the family theme, which is very important for the American culture. The author reviews the destruction of family relationships as a sign of the society’s moral crisis. The main topic has been realized via motives (escapism, freedom, death, and incest, they create the semantic frame of the play and unite separate episodes of the plot’s development. The motives become special tools of the characters’ psychological analysis and are an explanation of the feelings’ contradictory. The image of the house has a special meaning. It’s the symbol of the human disunity and a destruction of the family relations. As a result the synthesis of the motives, symbolism, intertextuality, multilayer has been viewed as a particular tool of the author’s opinion realization and the philosophical implication’s creation
Mitra, Abhas
2009-04-01
We point out that the space-time void inferred by Castro [J. Math. Phys. 49, 042501 (2008)] results from his choice of a discontinuous radial gauge. Further since the integration constant α0=2M0 (G =c=1) occurring in the vacuum Hilbert/Schwarzschild solution of a neutral "point mass" is zero [Arnowitt et al., in Gravitation: An Introduction to Current Research, edited by L. Witten (Wiley, New York, 1962), Chap. 7, p. 227; also Phys. Rev. Lett. 4, 375 (1960). A. Mitra, Adv. Space Res. 38, 2917 (2006); Proceedings of the XIth Marcel-Grossmann Conference on General Relativity (World Scientific, Singapore, 2008), Vol. 3, p. 1968], Castro's gauge reduces to the well behaved and physical Hilbert gauge. Physically this means that true Hilbert/Schwarzschild black holes have unique gravitational mass M =0. Accordingly, the unphysical space-time void inferred by Castro is actually nonexistent.
Aamodt, K.; Abrahantes Quintana, A.; Adamová, D.; Adare, A. M.; Aggarwal, M. M.; Aglieri Rinella, G.; Agocs, A. G.; Agostinelli, A.; Aguilar Salazar, S.; Ahammed, Z.; Ahmad, N.; Ahmad Masoodi, A.; Ahn, S. U.; Akindinov, A.; Aleksandrov, D.; Alessandro, B.; Alfaro Molina, R.; Alici, A.; Alkin, A.; Almaráz Aviña, E.; Alme, J.; Alt, T.; Altini, V.; Altsybeev, I.; Andrei, C.; Andronic, A.; Anguelov, V.; Anson, C.; Antičić, T.; Antinori, F.; Antonioli, P.; Aphecetche, L.; Appelshäuser, H.; Arbor, N.; Arcelli, S.; Arend, A.; Armesto, N.; Arnaldi, R.; Aronsson, T.; Arsene, I. C.; Asryan, A.; Augustinus, A.; Averbeck, R.; Awes, T. C.; Äystö, J.; Azmi, M. D.; Bach, M.; Badalà, A.; Baek, Y. W.; Bailhache, R.; Bala, R.; Baldini Ferroli, R.; Baldisseri, A.; Baldit, A.; Bán, J.; Barbera, R.; Barile, F.; Barnaföldi, G. G.; Barnby, L. S.; Barret, V.; Bartke, J.; Basile, M.; Bastid, N.; Bathen, B.; Batigne, G.; Batyunya, B.; Baumann, C.; Bearden, I. G.; Beck, H.; Belikov, I.; Bellini, F.; Bellwied, R.; Belmont-Moreno, E.; Beole, S.; Berceanu, I.; Bercuci, A.; Berdermann, E.; Berdnikov, Y.; Bergmann, C.; Betev, L.; Bhasin, A.; Bhati, A. K.; Bianchi, L.; Bianchi, N.; Bianchin, C.; Bielčík, J.; Bielčíková, J.; Bilandzic, A.; Biolcati, E.; Blanc, A.; Blanco, F.; Blanco, F.; Blau, D.; Blume, C.; Bock, N.; Bogdanov, A.; Bøggild, H.; Bogolyubsky, M.; Boldizsár, L.; Bombara, M.; Bombonati, C.; Book, J.; Borel, H.; Borissov, A.; Bortolin, C.; Bose, S.; Bossú, F.; Botje, M.; Böttger, S.; Boyer, B.; Braun-Munzinger, P.; Bravina, L.; Bregant, M.; Breitner, T.; Broz, M.; Brun, R.; Bruna, E.; Bruno, G. E.; Budnikov, D.; Buesching, H.; Bufalino, S.; Busch, O.; Buthelezi, Z.; Caffarri, D.; Cai, X.; Caines, H.; Calvo Villar, E.; Camerini, P.; Canoa Roman, V.; Cara Romeo, G.; Carena, F.; Carena, W.; Carminati, F.; Casanova Díaz, A.; Caselle, M.; Castillo Castellanos, J.; Catanescu, V.; Cavicchioli, C.; Cepila, J.; Cerello, P.; Chang, B.; Chapeland, S.; Charvet, J. L.; Chattopadhyay, S.; Chattopadhyay, S.; Cherney, M.; Cheshkov, C.; Cheynis, B.; Chiavassa, E.; Chibante Barroso, V.; Chinellato, D. D.; Chochula, P.; Chojnacki, M.; Christakoglou, P.; Christensen, C. H.; Christiansen, P.; Chujo, T.; Cicalo, C.; Cifarelli, L.; Cindolo, F.; Cleymans, J.; Coccetti, F.; Coffin, J.-P.; Conesa Balbastre, G.; Conesa Del Valle, Z.; Constantin, P.; Contin, G.; Contreras, J. G.; Cormier, T. M.; Corrales Morales, Y.; Cortés Maldonado, I.; Cortese, P.; Cosentino, M. R.; Costa, F.; Cotallo, M. E.; Crescio, E.; Crochet, P.; Cuautle, E.; Cunqueiro, L.; D Erasmo, G.; Dainese, A.; Dalsgaard, H. H.; Danu, A.; Das, D.; Das, I.; Dash, A.; Dash, S.; de, S.; de Azevedo Moregula, A.; de Barros, G. O. V.; de Caro, A.; de Cataldo, G.; de Cuveland, J.; de Falco, A.; de Gruttola, D.; De Marco, N.; de Pasquale, S.; de Rooij, R.; Del Castillo Sanchez, E.; Delagrange, H.; Delgado Mercado, Y.; Dellacasa, G.; Deloff, A.; Demanov, V.; Dénes, E.; Deppman, A.; di Bari, D.; di Giglio, C.; di Liberto, S.; di Mauro, A.; di Nezza, P.; Dietel, T.; Divià, R.; Djuvsland, Ø.; Dobrin, A.; Dobrowolski, T.; Domínguez, I.; Dönigus, B.; Dordic, O.; Driga, O.; Dubey, A. K.; Ducroux, L.; Dupieux, P.; Dutta Majumdar, A. K.; Dutta Majumdar, M. R.; Elia, D.; Emschermann, D.; Engel, H.; Erdal, H. A.; Espagnon, B.; Estienne, M.; Esumi, S.; Evans, D.; Evrard, S.; Eyyubova, G.; Fabris, D.; Faivre, J.; Falchieri, D.; Fantoni, A.; Fasel, M.; Fearick, R.; Fedunov, A.; Fehlker, D.; Fekete, V.; Felea, D.; Feofilov, G.; Fernández Téllez, A.; Ferreiro, E. G.; Ferretti, A.; Ferretti, R.; Figueredo, M. A. S.; Filchagin, S.; Fini, R.; Finogeev, D.; Fionda, F. M.; Fiore, E. M.; Floris, M.; Foertsch, S.; Foka, P.; Fokin, S.; Fragiacomo, E.; Fragkiadakis, M.; Frankenfeld, U.; Fuchs, U.; Furano, F.; Furget, C.; Fusco Girard, M.; Gaardhøje, J. J.; Gadrat, S.; Gagliardi, M.; Gago, A.; Gallio, M.; Ganoti, P.; Garabatos, C.; Garcia-Solis, E.; Gemme, R.; Gerhard, J.; Germain, M.; Geuna, C.; Gheata, A.; Gheata, M.; Ghidini, B.; Ghosh, P.; Gianotti, P.; Girard, M. R.; Giubellino, P.; Gladysz-Dziadus, E.; Glässel, P.; Gomez, R.; González-Trueba, L. H.; González-Zamora, P.; Gorbunov, S.; Gotovac, S.; Grabski, V.; Graczykowski, L. K.; Grajcarek, R.; Grelli, A.; Grigoras, A.; Grigoras, C.; Grigoriev, V.; Grigoryan, A.; Grigoryan, S.; Grinyov, B.; Grion, N.; Gros, P.; Grosse-Oetringhaus, J. F.; Grossiord, J.-Y.; Guber, F.; Guernane, R.; Guerra Gutierrez, C.; Guerzoni, B.; Gulbrandsen, K.; Gulkanyan, H.; Gunji, T.; Gupta, A.; Gupta, R.; Gutbrod, H.; Haaland, Ø.; Hadjidakis, C.; Haiduc, M.; Hamagaki, H.; Hamar, G.; Hanratty, L. D.; Harmanova, Z.; Harris, J. W.; Hartig, M.; Hasegan, D.; Hatzifotiadou, D.; Hayrapetyan, A.; Heide, M.; Heinz, M.; Helstrup, H.; Herghelegiu, A.; Herrera Corral, G.; Herrmann, N.; Hetland, K. F.; Hicks, B.; Hille, P. T.; Hippolyte, B.; Horaguchi, T.; Hori, Y.; Hristov, P.; Hřivnáčová, I.; Huang, M.; Huber, S.; Humanic, T. J.; Hwang, D. S.; Ilkaev, R.; Ilkiv, I.; Inaba, M.; Incani, E.; Innocenti, G. M.; Ippolitov, M.; Irfan, M.; Ivan, C.; Ivanov, A.; Ivanov, M.; Ivanov, V.; Jachołkowski, A.; Jacobs, P. M.; Jancurová, L.; Jangal, S.; Janik, M. A.; Janik, R.; Jayarathna, P. H. S. Y.; Jena, S.; Jirden, L.; Jones, G. T.; Jones, P. G.; Jovanović, P.; Jung, H.; Jung, W.; Jusko, A.; Kalcher, S.; Kaliňák, P.; Kalisky, M.; Kalliokoski, T.; Kalweit, A.; Kamermans, R.; Kanaki, K.; Kang, E.; Kang, J. H.; Kaplin, V.; Karasu Uysal, A.; Karavichev, O.; Karavicheva, T.; Karpechev, E.; Kazantsev, A.; Kebschull, U.; Keidel, R.; Khan, M. M.; Khan, P.; Khanzadeev, A.; Kharlov, Y.; Kileng, B.; Kim, D. J.; Kim, D. S.; Kim, D. W.; Kim, J. H.; Kim, J. S.; Kim, M.; Kim, S.; Kim, S. H.; Kirsch, S.; Kisel, I.; Kiselev, S.; Kisiel, A.; Klay, J. L.; Klein, J.; Klein-Bösing, C.; Kliemant, M.; Kluge, A.; Knichel, M. L.; Koch, K.; Köhler, M. K.; Kolojvari, A.; Kondratiev, V.; Kondratyeva, N.; Konevskih, A.; Kornaś, E.; Kottachchi Kankanamge Don, C.; Kour, R.; Kowalski, M.; Kox, S.; Koyithatta Meethaleveedu, G.; Kozlov, K.; Kral, J.; Králik, I.; Kramer, F.; Kraus, I.; Krawutschke, T.; Kretz, M.; Krivda, M.; Krizek, F.; Krus, M.; Kryshen, E.; Krzewicki, M.; Kucheriaev, Y.; Kuhn, C.; Kuijer, P. G.; Kurashvili, P.; Kurepin, A.; Kurepin, A. B.; Kuryakin, A.; Kushpil, S.; Kushpil, V.; Kweon, M. J.; Kwon, Y.; La Rocca, P.; Ladrón de Guevara, P.; Lafage, V.; Lakomov, I.; Lara, C.; Larsen, D. T.; Lazzeroni, C.; Le Bornec, Y.; Lea, R.; Lechman, M.; Lee, K. S.; Lee, S. C.; Lefèvre, F.; Lehnert, J.; Leistam, L.; Lenhardt, M.; Lenti, V.; León Monzón, I.; León Vargas, H.; Lévai, P.; Li, X.; Lietava, R.; Lindal, S.; Lindenstruth, V.; Lippmann, C.; Lisa, M. A.; Liu, L.; Loggins, V. R.; Loginov, V.; Lohn, S.; Lohner, D.; Loizides, C.; Loo, K. K.; Lopez, X.; López Noriega, M.; López Torres, E.; Løvhøiden, G.; Lu, X.-G.; Luettig, P.; Lunardon, M.; Luparello, G.; Luquin, L.; Luzzi, C.; Ma, K.; Ma, R.; Madagodahettige-Don, D. M.; Maevskaya, A.; Mager, M.; Mahapatra, D. P.; Maire, A.; Malaev, M.; Maldonado Cervantes, I.; Mal'Kevich, D.; Malzacher, P.; Mamonov, A.; Manceau, L.; Manko, V.; Manso, F.; Manzari, V.; Mao, Y.; Marchisone, M.; Mareš, J.; Margagliotti, G. V.; Margotti, A.; Marín, A.; Markert, C.; Martashvili, I.; Martinengo, P.; Martínez, M. I.; Martínez Davalos, A.; Martínez García, G.; Martynov, Y.; Mas, A.; Masciocchi, S.; Masera, M.; Masoni, A.; Massacrier, L.; Mastromarco, M.; Mastroserio, A.; Matthews, Z. L.; Matyja, A.; Mayani, D.; Mazzoni, M. A.; Meddi, F.; Menchaca-Rocha, A.; Mendez Lorenzo, P.; Mercado Pérez, J.; Meres, M.; Miake, Y.; Midori, J.; Milano, L.; Milosevic, J.; Mischke, A.; Miśkowiec, D.; Mitu, C.; Mlynarz, J.; Mohanty, B.; Molnar, L.; Montaño Zetina, L.; Monteno, M.; Montes, E.; Morando, M.; Moreira de Godoy, D. A.; Moretto, S.; Morsch, A.; Muccifora, V.; Mudnic, E.; Müller, H.; Muhuri, S.; Munhoz, M. G.; Musa, L.; Musso, A.; Nandi, B. K.; Nania, R.; Nappi, E.; Nattrass, C.; Navach, F.; Navin, S.; Nayak, T. K.; Nazarenko, S.; Nazarov, G.; Nedosekin, A.; Nendaz, F.; Nicassio, M.; Nielsen, B. S.; Nikolaev, S.; Nikolic, V.; Nikulin, S.; Nikulin, V.; Nilsen, B. S.; Nilsson, M. S.; Noferini, F.; Nooren, G.; Novitzky, N.; Nyanin, A.; Nyatha, A.; Nygaard, C.; Nystrand, J.; Obayashi, H.; Ochirov, A.; Oeschler, H.; Oh, S. K.; Oleniacz, J.; Oppedisano, C.; Ortiz Velasquez, A.; Ortona, G.; Oskarsson, A.; Ostrowski, P.; Otterlund, I.; Otwinowski, J.; Øvrebekk, G.; Oyama, K.; Ozawa, K.; Pachmayer, Y.; Pachr, M.; Padilla, F.; Pagano, P.; Paić, G.; Painke, F.; Pajares, C.; Pal, S.; Pal, S. K.; Palaha, A.; Palmeri, A.; Pappalardo, G. S.; Park, W. J.; Paticchio, V.; Pavlinov, A.; Pawlak, T.; Peitzmann, T.; Peresunko, D.; Pérez Lara, C. E.; Perini, D.; Perrino, D.; Peryt, W.; Pesci, A.; Peskov, V.; Pestov, Y.; Peters, A. J.; Petráček, V.; Petran, M.; Petris, M.; Petrov, P.; Petrovici, M.; Petta, C.; Piano, S.; Piccotti, A.; Pikna, M.; Pillot, P.; Pinazza, O.; Pinsky, L.; Pitz, N.; Piuz, F.; Piyarathna, D. B.; Platt, R.; Płoskoń, M.; Pluta, J.; Pocheptsov, T.; Pochybova, S.; Podesta-Lerma, P. L. M.; Poghosyan, M. G.; Polichtchouk, B.; Pop, A.; Pospíšil, V.; Potukuchi, B.; Prasad, S. K.; Preghenella, R.; Prino, F.; Pruneau, C. A.; Pshenichnov, I.; Puddu, G.; Pulvirenti, A.; Punin, V.; Putiš, M.; Putschke, J.; Quercigh, E.; Qvigstad, H.; Rachevski, A.; Rademakers, A.; Radomski, S.; Räihä, T. S.; Rak, J.; Rakotozafindrabe, A.; Ramello, L.; Ramírez Reyes, A.; Rammler, M.; Raniwala, R.; Raniwala, S.; Räsänen, S. S.; Rathee, D.; Read, K. F.; Real, J. S.; Redlich, K.; Renfordt, R.; Reolon, A. R.; Reshetin, A.; Rettig, F.; Revol, J.-P.; Reygers, K.; Ricaud, H.; Riccati, L.; Ricci, R. A.; Richter, M.; Riedler, P.; Riegler, W.; Riggi, F.; Rodríguez Cahuantzi, M.; Rohr, D.; Röhrich, D.; Romita, R.; Ronchetti, F.; Rosinský, P.; Rosnet, P.; Rossegger, S.; Rossi, A.; Roukoutakis, F.; Rousseau, S.; Roy, C.; Roy, P.; Rubio Montero, A. J.; Rui, R.; Ryabinkin, E.; Rybicki, A.; Sadovsky, S.; Šafařík, K.; Sahoo, R.; Sahu, P. K.; Saiz, P.; Sakai, S.; Sakata, D.; Salgado, C. A.; Sambyal, S.; Samsonov, V.; Šándor, L.; Sandoval, A.; Sano, M.; Sano, S.; Santo, R.; Santoro, R.; Sarkamo, J.; Saturnini, P.; Scapparone, E.; Scarlassara, F.; Scharenberg, R. P.; Schiaua, C.; Schicker, R.; Schmidt, C.; Schmidt, H. R.; Schreiner, S.; Schuchmann, S.; Schukraft, J.; Schutz, Y.; Schwarz, K.; Schweda, K.; Scioli, G.; Scomparin, E.; Scott, P. A.; Scott, R.; Segato, G.; Senyukov, S.; Seo, J.; Serci, S.; Serradilla, E.; Sevcenco, A.; Sgura, I.; Shabratova, G.; Shahoyan, R.; Sharma, N.; Sharma, S.; Shigaki, K.; Shimomura, M.; Shtejer, K.; Sibiriak, Y.; Siciliano, M.; Sicking, E.; Siemiarczuk, T.; Silvermyr, D.; Simonetti, G.; Singaraju, R.; Singh, R.; Singha, S.; Sinha, B. C.; Sinha, T.; Sitar, B.; Sitta, M.; Skaali, T. B.; Skjerdal, K.; Smakal, R.; Smirnov, N.; Snellings, R.; Søgaard, C.; Soltz, R.; Son, H.; Song, J.; Song, M.; Soos, C.; Soramel, F.; Spyropoulou-Stassinaki, M.; Srivastava, B. K.; Stachel, J.; Stan, I.; Stefanek, G.; Stefanini, G.; Steinbeck, T.; Steinpreis, M.; Stenlund, E.; Steyn, G.; Stocco, D.; Stock, R.; Stokkevag, C. H.; Stolpovskiy, M.; Strmen, P.; Suaide, A. A. P.; Subieta Vásquez, M. A.; Sugitate, T.; Suire, C.; Sukhorukov, M.; Šumbera, M.; Susa, T.; Swoboda, D.; Symons, T. J. M.; Szanto de Toledo, A.; Szarka, I.; Szostak, A.; Tagridis, C.; Takahashi, J.; Tapia Takaki, J. D.; Tauro, A.; Tejeda Muñoz, G.; Telesca, A.; Terrevoli, C.; Thäder, J.; Thomas, D.; Thomas, J. H.; Tieulent, R.; Timmins, A. R.; Tlusty, D.; Toia, A.; Torii, H.; Tosello, F.; Traczyk, T.; Truesdale, D.; Trzaska, W. H.; Tumkin, A.; Turrisi, R.; Turvey, A. J.; Tveter, T. S.; Ulery, J.; Ullaland, K.; Uras, A.; Urbán, J.; Urciuoli, G. M.; Usai, G. L.; Vajzer, M.; Vala, M.; Valencia Palomo, L.; Vallero, S.; van der Kolk, N.; van Leeuwen, M.; Vande Vyvre, P.; Vannucci, L.; Vargas, A.; Varma, R.; Vasileiou, M.; Vasiliev, A.; Vechernin, V.; Veldhoen, M.; Venaruzzo, M.; Vercellin, E.; Vergara, S.; Vernekohl, D. C.; Vernet, R.; Verweij, M.; Vickovic, L.; Viesti, G.; Vikhlyantsev, O.; Vilakazi, Z.; Villalobos Baillie, O.; Vinogradov, A.; Vinogradov, L.; Vinogradov, Y.; Virgili, T.; Viyogi, Y. P.; Vodopyanov, A.; Voloshin, K.; Voloshin, S.; Volpe, G.; von Haller, B.; Vranic, D.; Vrláková, J.; Vulpescu, B.; Vyushin, A.; Wagner, B.; Wagner, V.; Wan, R.; Wang, D.; Wang, M.; Wang, Y.; Wang, Y.; Watanabe, K.; Wessels, J. P.; Westerhoff, U.; Wiechula, J.; Wikne, J.; Wilde, M.; Wilk, A.; Wilk, G.; Williams, M. C. S.; Windelband, B.; Yang, H.; Yasnopolskiy, S.; Yi, J.; Yin, Z.; Yokoyama, H.; Yoo, I.-K.; Yuan, X.; Yushmanov, I.; Zabrodin, E.; Zach, C.; Zampolli, C.; Zaporozhets, S.; Zarochentsev, A.; Závada, P.; Zaviyalov, N.; Zbroszczyk, H.; Zelnicek, P.; Zenin, A.; Zgura, I.; Zhalov, M.; Zhang, X.; Zhou, D.; Zhou, F.; Zhou, Y.; Zhu, X.; Zichichi, A.; Zinovjev, G.; Zoccarato, Y.; Zynovyev, M.; Alice Collaboration
2012-12-01
We have identified a bias in the calculation of the cross section of J / ψ production measured in the e+e- channel at central rapidity (| y | < 0.9) [1]. The acceptance and efficiency corrections were evaluated using a Monte Carlo simulation, based on PYTHIA [2,3], which did not include the radiative decays of J / ψ (J / ψ →e+e- γ). In these decays the reconstructed dielectron invariant mass, me+e-, is biased towards smaller values than the nominal J / ψ mass, since the photon contribution is neglected. As a consequence, the fraction of signal events in the me+e- range 2.92-3.16 GeV/c2 was overestimated by about 10%. Moreover, the requirement of the transverse momentum of the daughter electrons being larger than 1 GeV/c is more selective for radiative than non-radiative J / ψ decays. Therefore, the J / ψ acceptance was also overestimated by about 5%.
Dawber, M.; Scott, J. F.
2002-01-01
This is a reply to cond-mat/0211660 by A.K. Taganstev, which consists of a set of criticisms of our publications on polarisation fatigue in Applied Physics Letters. Although his comments were rejected by Applied Physics Letters more than two years ago, Dr Tagantsev has published them in this archive on 29/11/2002. We reply to each of his criticisms here.
Gai, Moshe
2015-01-01
We address a conflicting report on the value and uncertainty of the astrophysical cross section factor of the 12C(a,g) reaction extracted from existing data. In sharp contrast to previously reported ambiguities (by up to a factor 8), Schuermann et al. suggest an accuracy of 12%. We demonstrate that the so claimed "rigorous data selection criteria" used by Schuermann et al. relies on the s-factors extracted by Assuncao et al. But these results were shown in a later analysis (by this author) to have large error bars (considerably larger than claimed by Assuncao em et al.) which render these data not appropriate for a rigorous analysis. When their "rigorous data selection" is adjusted to remove the results of Assuncao et al. the astrophysical cross section factor cannot be extracted with 12% accuracy, or even close to it. Such data on the S_E2 values at low energies deviate by up to a factor two from their fit and exhibit a sharper slope rising toward low energies, leading to strong doubt on their extrapolated S...
ZHANG Si-Tuo; ZHANG Wei; ZHOU Qiang; HUANG Yi-Dong; PENG Jiang-De
2009-01-01
@@ As the definition in the Letter,the preparation efficiency should be calculated according to Eq.(2).However,the data in Fig.4 were not divided by η_(SPD2)=0.15,while all the pertinent discussion is correct.We correct this mistake and show the revised figure here.
Kupiainen-Määttä, Oona; Henschel, Henning; Kurtén, Theo; Loukonen, Ville; Olenius, Tinja; Paasonen, Pauli; Vehkamäki, Hanna
2015-03-01
We comment on a study by Nadykto et al. recently published in this journal. Earlier work from our group has been misrepresented in this study, and we feel that the claims made need to be amended. Also the analysis of Nadykto et al. concerning the implications of their own density functional calculations is incomplete. We present cluster formation simulations allowing more conclusions to be drawn from their data, and also compare them to recent experimental results not cited in their work.
Kupiainen-Määttä, Oona; Kurtén, Theo; Loukonen, Ville; Olenius, Tinja; Paasonen, Pauli; Vehkamäki, Hanna
2014-01-01
We comment on a study by Nadykto et al. recently published in this journal. Earlier work from our group has been misrepresented in this study, and we feel that the claims made need to be amended. Also the analysis of Nadykto et al. concerning the implications of their own density functional calculations is incomplete. We present cluster formation simulations allowing more conclusions to be drawn from their data, and also compare them to recent experimental results not cited in their work.
Ipsita Mandal
2016-09-01
Full Text Available In this addendum, we consider the connection between certain 2d super-GCA, obtained from the parametric contractions of 2d SCFTs, which can describe the constraint algebra of null spinning strings.
Perez, J C; Boldyrev, S; Cattaneo, F
2014-01-01
The inertial-interval energy spectrum of strong magnetohydrodynamic (MHD) turbulence with a uniform background magnetic field was observed numerically to be close to $k^{-3/2}$ by a number of independent groups. A dissenting opinion has been voiced by Beresnyak, A. 2011, PRL, 106, 075001-. 2012, MNRAS, 422, 3495-. 2014, ApJ, 784, L20 that the spectral scaling is close to $k^{-5/3}$. The conclusions of these papers are however incorrect as they are based on numerical simulations that are drastically unresolved, so that the discrete numerical scheme does not approximate the physical solution at the scales where the measurements are performed. These results have been rebutted in our more detailed papers Perez, J. C., Mason, J., Boldyrev, S., & Cattaneo, F. 2012, PRX, 2, 041005-. 2014, ApJL, 793, L13; here, by popular demand, we present a brief and simple explanation of our major criticism of Beresnyak's work.
The PhysTEC Teacher Education Program at FIU
Kramer, Laird
2010-10-01
The FIU PhysTEC Project is an integral component of the Physics Department's educational transformation that has led to more than a ten-fold increase in majors. The transformation seeks to increase the quality and quantity of physics majors and future physics teachers, including those from historically underrepresented groups. Elements of the efforts include transformed introductory physics courses, establishment of a physics research and learning community, engagement of stakeholders spanning high school through the university administration, and advocacy by a physics education research group. The PhysTEC Project supports future physics teachers through a Learning Assistant program coupled to newly revised secondary education programs. The Learning Assistant program is an experiential program that recruits new students into teaching careers while providing a mechanism for transforming courses - undergraduates experience the rewards and intellectual challenges of teaching through providing interactive engagement learning experiences for their peers in introductory physics courses. Students that continue in the program enroll in a multidisciplinary teacher preparation program and may receive significant financial support. FIU is a minority-serving urban public research institution in Miami, Florida serving over 39,000 students, of which 64% are Hispanic, 13% are Black, and 56% are women. Programmatic strategies and impacts of the program will be provided.
Comment on “Diffusion of n-type dopants in germanium” [Appl. Phys. Rev. 1, 011301 (2014)
Cowern, N. E. B., E-mail: nick.cowern@ncl.ac.uk; Simdyankin, S.; Goss, J. P. [School of Electrical and Electronic Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU (United Kingdom); Napolitani, E.; De Salvador, D. [CNR-IMM-MATIS and Dipartimento di Fisica, Università di Padova, Via Marzolo 8, 35131 Padova (Italy); Bruno, E.; Mirabella, S. [CNR-IMM-MATIS and Dipartimento di Fisica e Astronomia, Università di Catania, Via S. Sofia 64, 95123 Catania (Italy); Ahn, C. [Samsung Semiconductor, Inc., 3655 North First Street, San Jose, California 95134 (United States); Bennett, N. S. [Institute of Mechanical, Process and Energy Engineering, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS (United Kingdom)
2015-09-15
The authors of the above paper call into question recent evidence on the properties of self-interstitials, I, in Ge [Cowern et al., Phys. Rev. Lett. 110, 155501 (2013)]. We show that this judgment stems from invalid model assumptions during analysis of data on B marker-layer diffusion during proton irradiation, and that a corrected analysis fully supports the reported evidence. As previously stated, I-mediated self-diffusion in Ge exhibits two distinct regimes of temperature, T: high-T, dominated by amorphous-like mono-interstitial clusters—i-morphs—with self-diffusion entropy ≈30 k, and low-T, where transport is dominated by simple self-interstitials. In a transitional range centered on 475 °C both mechanisms contribute. The experimental I migration energy of 1.84 ± 0.26 eV reported by the Münster group based on measurements of self-diffusion during irradiation at 550 °C < T < 680 °C further establishes our proposed i-morph mechanism.
Preface: phys. stat. sol. (a) 202/12
Neumann, Wolfgang; Stutzmann, Martin; Hildebrandt, Stefan
2005-09-01
The present special issue contains a collection of Original Papers dedicated to Professor Johannes Heydenreich on the occasion of his 75th birthday.Johannes Heydenreich, born on 20 June 1930 in Plauen/Vogtland near Dresden, studied physics at the Pädagogische Hochschule Potsdam, where he obtained his first academic degree Dipl. Phys. in 1958. He received his doctoral degree at the Martin Luther University in Halle in 1961 and the Habilitation degree in 1969. Already during his studies in Potsdam, he showed an interest in electron microscopy due to the influence of his teacher and supervisor Prof. Picht, one of the pioneers in electron optics. His interests were strengthened when Johannes Heydenreich did the experimental work for his Diploma degree at the Institute for Experimental Physics of the University of Halle, where he met Prof. Heinz Bethge for the first time. This was the beginning of a fruitful and longstanding collaboration. In 1962 Johannes Heydenreich joined the team of the later Institute for Solid State Physics and Electron Microscopy of the Academy of Sciences of the GDR, in Halle, for which the basis was laid by Prof. Bethge in 1960.Heydenreich has been working as Assistant Director for many years and played a decisive role in introducing and organising the various techniques of electron microscopy in the institute.The research activities of Prof. Heydenreich covered a broad spectrum over the years. At the beginning of his career he made significant contributions in the field of electron mirror microscopy. After that, his main interests were focused on transmission electron microscopy, ranging from diffraction contrast analysis of crystal defects to high-resolution electron microscopy and image processing. His favourite field was studies of defect-induced phenomena in advanced materials. The so-called Bethge-Heydenreich, the book Electron Microscopy in Solid State Physics, published at first in a German edition in 1982 and later in a revised
Comment on "On quantum plasma: A plea for a common sense [Europhys. Lett., 99 25001(2012)
Shukla, P K
2012-01-01
In a recent paper, J. Vranjes et al. [Europhys. Lett., 99 25001 (2012)] have questioned the validity and applications of quantum plasma theories. Based on a fallacious argument, they conclude that the physical applications of well founded quantum plasma theory is limited only to very high densities with much lower temperatures, such as those found in neutron-star core regions. Our objective here is to demonstrate that Vranjes et al's criterion for the applicability of the quantum plasma theory is misleading and erroneous.
Chemistry Teacher Education Coalition: Extending the PhysTEC Model to Chemistry
Kirchhoff, Mary
2012-02-01
The American Association of Employment in Education reports that chemistry, like physics, faces ``some shortage'' of educators. Inspired by the success of the Physics Teacher Education Coalition (PhysTEC), the American Chemical Society (ACS) is developing the Chemistry Teacher Education Coalition (CTEC) to actively engage chemistry departments in the preparation of future chemistry teachers. Engaging chemistry departments in teacher preparation would increase the number and diversity of well-prepared high school chemistry teachers while catalyzing cultural change within chemistry departments. Many features of PhysTEC, such as a grant competition to create model teacher preparation programs and regular conferences, are directly applicable to chemistry. This presentation will provide an overview of ACS efforts to launch a successful CTEC initiative.
Kourakis, I.; Elkamash, I. S.
2016-10-01
In a recent article (J. Plasma Phys., vol. 82, 2009, 905820104), weakly dissipative dust-ion acoustic wave modulation in dusty plasmas was considered. It is shown in this Comment that the analysis therein involved severe fallacies, and is in fact based on an erroneous plasma fluid model, which fails to satisfy an equilibrium condition, among other shortcomings. The subsequent analysis therefore is dubious and of limited scientific value.
Comment on ``Minimum free-energy pathway of nucleation'' [J. Chem. Phys. 135, 134508 (2011)
Schmelzer, Jürn W. P.; Abyzov, Alexander S.
2012-03-01
In their recent paper [J. Chem. Phys. 135, 134508 (2011)], Philippe and Blavette, 10.1063/1.3644935 claimed to have found for the first time—based on minimum free energy considerations—that the nucleation pathway in solid solutions involves a universal two-step behavior: nuclei sharply enrich up to near equilibrium values of the concentration and then grow. This claim of priority is not correct. The same scenario was proposed by us long ago [J. W. P. Schmelzer, A. R. Gokhman, and V. M. Fokin, J. Colloid Interface Sci. 272, 109 (2004)], 10.1016/j.jcis.2003.08.038 and then applied and further developed. In particular, it was shown by us that only the account of both thermodynamic and kinetic factors allows one to determine correctly the most probable path of evolution in nucleation-growth processes. The two-step scenario is retained, however, also in these generalizations of our original approach.
Ghosh, Uday Narayan, E-mail: unghosh1@rediffmail.com; Chatterjee, Prasanta; Roychoudhury, Rajkumar [Department of Mathematics, Siksha Bhavana, Visva Bharati, Santiniketan 731235 (India)
2015-07-15
Recently Gun Li et al. discussed “Effects of damping solitary wave in a viscosity bounded plasma” [Phys. Plasmas 21, 022118 (2014)]. The paper contains some serious errors which have been pointed out in this Comment.
PREFACE: International Symposium "Nanoscience and Quantum Physics 2011" (nanoPHYS'11)
Saito, Susumu; Tanaka, Hidekazu; Nakamura, Takashi; Nakamura, Masaaki
2011-07-01
Quantum physics has developed modern views of nature for more than a century. In addition to this traditional role, quantum physics has acquired new significance in the 21st century as the field responsible for driving and supporting nanoscience research, which will have even greater importance in the future because nanoscience will be the academic foundation for new technologies. The Department of Physics, Tokyo Institute of Technology, are now conducting a "Nanoscience and Quantum Physics" project (Physics G-COE project) supported by the Global Center of Excellence Program of the Ministry of Education, Culture, Sports, Science and Technology of Japan (MEXT) in order to promote research and education in these important academic fields. The International Symposium on Nanoscience and Quantum Physics, held in Tokyo, Japan, 26-28 January 2011 (nanoPHYS'11) was organized by the Physics G-COE project of the Tokyo Institute of Technology to provide an international forum for the open exchange of topical information and for stimulating discussion on novel concepts and future prospects of nanoscience and quantum physics. There were a total of 118 papers including 34 invited papers. This nanoPHYS'11 is the fourth symposium of this kind organized by the Tokyo Institute of Technology. Topics focused on in the symposium included: Category 1: Novel nanostructure (Nanowires, Nanotubes, Spin-related structure, etc) Category 2: Novel transport and electronic properties (Graphene, Topological insulators, Coherent control, etc) Category 3: Electronic and optical properties of nanostructure Category 4: Fundamental physics and new concept in quantum physics Category 5: Quantum Physics - Quantum information Category 6: Quantum Physics - Nuclear and Hadron Physics Category 7: Quantum Physics - Astrophysics, etc All the papers submitted to this issue have been reviewed under a stringent refereeing process, according to the normal rules of this Journal. The editors are grateful to all the
PyDecay/GraphPhys: A Unified Language and Storage System for Particle Decay Process Descriptions
Dunietz, Jesse N.; /MIT /SLAC
2011-06-22
To ease the tasks of Monte Carlo (MC) simulation and event reconstruction (i.e. inferring particle-decay events from experimental data) for long-term BaBar data preservation and analysis, the following software components have been designed: a language ('GraphPhys') for specifying decay processes, common to both simulation and data analysis, allowing arbitrary parameters on particles, decays, and entire processes; an automated visualization tool to show graphically what decays have been specified; and a searchable database storage mechanism for decay specifications. Unlike HepML, a proposed XML standard for HEP metadata, the specification language is designed not for data interchange between computer systems, but rather for direct manipulation by human beings as well as computers. The components are interoperable: the information parsed from files in the specification language can easily be rendered as an image by the visualization package, and conversion between decay representations was implemented. Several proof-of-concept command-line tools were built based on this framework. Applications include building easier and more efficient interfaces to existing analysis tools for current projects (e.g. BaBar/BESII), providing a framework for analyses in future experimental settings (e.g. LHC/SuperB), and outreach programs that involve giving students access to BaBar data and analysis tools to give them a hands-on feel for scientific analysis.
The PhysTEC project: A perspective on what it takes to recruit and educate more physics teachers
Plisch, Monica
2012-03-01
The PhysTEC project has more than doubled the number of physics teachers educated at supported sites. These institutions were selected for their potential to implement change primarily in physics departments and build model teacher education programs. Key components of PhysTEC programs include active recruiting, early teaching experiences, pedagogical content knowledge, Learning Assistants, and induction and mentoring. Important structural elements include a program champion, a Teacher in Residence, assessment, collaboration, and institutional commitment. The PhysTEC project has supported about 20 institutions to date. In order to more fully address the national need for qualified physics teachers, the effort would need to be scaled up substantially. There is evidence of growing interest among physics departments in taking on this issue, and a national coalition committed to improving the education of future physics teachers has expanded to include more than 250 member institutions. The project is experimenting with targeted sites, funded at a lower level, to implement focused programs. In addition, PhysTEC is partnering with aligned efforts to magnify its impact. PhysTEC is a project led by APS with AAPT, and supported by the NSF and the APS Campaign for the 21st Century.
‘PhysTrack’: a Matlab based environment for video tracking of kinematics in the physics laboratory
Umar Hassan, Muhammad; Sabieh Anwar, Muhammad
2017-07-01
In the past two decades, several computer software tools have been developed to investigate the motion of moving bodies in physics laboratories. In this article we report a Matlab based video tracking library, PhysTrack, primarily designed to investigate kinematics. We compare PhysTrack with other commonly available video tracking tools and outline its salient features. The general methodology of the whole video tracking process is described with a step by step explanation of several functionalities. Furthermore, results of some real physics experiments are also provided to demonstrate the working of the automated video tracking, data extraction, data analysis and presentation tools that come with this development environment. We believe that PhysTrack will be valuable for the large community of physics teachers and students already employing Matlab.
Stolarski, M
2014-01-01
The HERMES collaboration in Phys. Rev. D89 (2014) 097101 extracted information about the strange quark density in the nucleon. One of the main results is an observation that the shape of the extracted density is very different from the shapes of the strange quark density from global QCD fits and also from that of the light antiquarks. In this paper systematic studies on the HERMES published multiplicity of pion and kaon data are presented. It is shown that the conclusions concerning the strange quark distribution in the nucleon reached in Phys. Rev. D89 (2014) 097101 are at the moment premature.
Susi, T., E-mail: toma.susi@univie.ac.at; Kotakoski, J. [Faculty of Physics, University of Vienna, Boltzmanngasse 5, 1090 Vienna (Austria)
2016-02-14
In an interesting recent study [Allen et al., J. Appl. Phys. 118, 074302 (2015)] (see also their Erratum [Allen et al., J. Appl. Phys. 118, 159902 (2015)]), Allen and co-workers measured the mean square amplitudes of graphene lattice vibrations between 100 and 1300 K and used a simplified theoretical approximation for the acoustic phonon modes to evaluate the maximum phonon wavelengths supported by the lattice. By fitting their data using the smallest wave-vector as the fitting parameter, they found this to be significantly smaller than the physical size of the graphene crystallites.
Semenov, Semen N; Schimpf, Martin E
2012-09-28
The material transport equations derived in the article by Leroyer and Würger [J. Chem. Phys. 135, 054102 (2011)] do not adequately provide a description of material transport in liquid binary systems. An alternate approach based on non-equilibrium thermodynamics is presented.
Comment on "Structure and properties of reduced LaCoO3" [J. Appl. Phys. 44, 5553 (1973)
Zhang, A. M.
2013-06-01
A hexagonal crystal lattice with the perovskite structure can be treated as rhombohedral or pseudocubic structure. The publication by Sis and Wirtz [J. Appl. Phys. 44, 5553 (1973)] presented a schematic diagram to explain these relationships, but made a mistake in the hexagonal lattice, which is corrected here.
Aschenauer, E C; Joosten, S; Rith, K; Schnell, G; Van Hulse, C
2015-01-01
In the "Comments on Phys. Rev. D89, 097101 (2014)", the Author presents a number of studies to conjecture that the analysis by the HERMES Collaboration presented in Phys. Rev. D89, 097101 (2014) likely suffers from effects that invalidate the leading-order analysis used in that publication. In our opinion, the Author has drawn erroneous conclusions. We present below a discussion of his arguments and the results from a repetition of that analysis using a range of parton distribution sets. The spread in those results precludes credible conclusions and demonstrates the sensitivity of the analysis to poorly known input data (unfavored FFs, strange-quark distributions, and mixed singlet and nonsinglet quantities).
Editorial Board
2014-03-01
Full Text Available The article Condens. Matter Phys., 2013, vol. 16, 43802 ( DOI:10.5488/CMP.16.43802 has been retracted by the decision of the Editorial Board. There is a significant overlap with an article: Phys. Rev. E, 2006, vol. 74, 036120 ( DOI:10.1103/PhysRevE.74.036120. Appologies are offered to readers of the journal that this was not detected during the submission process.
Hill, R. D.
1987-08-01
It is noted that the energy computed by Paxton et al. [Phys. Fluids 29, 2736 (1986)] for the dissipation in unit length of a typical lightning channel is much less than a widely quoted experimental value, and also less than an earlier computed value. A further comment on the work of Paxton et al. that a large fraction of energy is ``radiated away,'' is also made.
Quinn, C. D.; Glen, R. A.; Diessel, C. F. K.
2008-05-01
On the basis of a numerical simulation, Klose [Earth Planet. Sci. Lett. 256: 547-553 (2007)] proposed that the MW = 5.2-5.6 earthquake that nucleated beneath Newcastle (New South Wales, Australia) at 10.30 AM December 28, 1989 (AEST), was the result of 200yr of coal mining in the region. We argue here that Klose's [Earth Planet. Sci. Lett. 256: 547-553 (2007)] ultimate conclusion is not supported by his own model or by available geological and seismic data. In particular, the 1989 Newcastle earthquake was not anomalous with respect to regional seismic activity.
Comments on Letter (Phys. Rev. L, Vol.89, No. 10,2002) by D. Shapira and M. Saltmarsh
Taleyarkhan, Rusi P; Cho, JaeSeon; Lahey, Richard T; Nigmatulin, Robert I; Block, Robert C
2013-01-01
This article focuses on correcting several factual errors and critiques in the previously published Letter in Phys. Rev. L, Vol. 89, No. 10, 2022, by D. Shapira and M. Saltmarsh. The authors of the Letter did not perform their own "independent" experiments as claimed; they did not perform control experiments with normal acetone; and, neither did they monitor for tritium. It their Letter, the authors (D. Shapira and M. Saltmarsh) failed to disclose that the data they collected actually confirmed our claims of having observed statistically significant nuclear emissions in chilled, cavitated deuterated acetone.
Moradi, Afshin
2016-04-01
In a recent article [Niknam et al., Phys. Plasmas 20, 122106 (2013)], Niknam et al. investigated the propagation of TM surface waves on a semi-bounded quantum magnetized collisional plasma in the Faraday configuration (in this case, the magnetic field is parallel to the both of the plasma surface and direction of propagation). Here, we present a fresh look at the problem and show that TM surface waves cannot propagate on surface of the present system. We find in the Faraday configuration the surface waves acquire both TM and TE components due to the cyclotron motion of electrons. Therefore, the main result of the work by Niknam et al. is incorrect.
Moradi, Afshin
2016-07-01
In a recent article [C. Li et al., Phys. Plasmas 21, 072114 (2014)], Li et al. studied the propagation of surface waves on a magnetized quantum plasma half-space in the Voigt configuration (in this case, the magnetic field is parallel to the surface but is perpendicular to the direction of propagation). Here, we present a fresh look at the problem and obtain a new form of dispersion relation of surface waves of the system. We find that our new dispersion relation does not agree with the result obtained by Li et al.
Comment on “On the quantum theory of molecules” [J. Chem. Phys. 137, 22A544 (2012)
Sutcliffe, Brian T., E-mail: bsutclif@ulb.ac.be [Service de Chimie quantique et Photophysique, Université Libre de Bruxelles, B-1050 Bruxelles (Belgium); Woolley, R. Guy [School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS (United Kingdom)
2014-01-21
In our previous paper [B. T. Sutcliffe and R. G. Woolley, J. Chem. Phys. 137, 22A544 (2012)] we argued that the Born-Oppenheimer approximation could not be based on an exact transformation of the molecular Schrödinger equation. In this Comment we suggest that the fundamental reason for the approximate nature of the Born-Oppenheimer model is the lack of a complete set of functions for the electronic space, and the need to describe the continuous spectrum using spectral projection.
Swartz, C. H.
2016-09-01
A recent paper [A. Bejan and R. W. Wagstaff, J. Appl. Phys. 119, 094901 (2016)] concludes that bodies of the same size suspended uniformly in space are in a state of high internal tension. The tension is then relieved by rearrangement of the bodies into a non-uniform distribution of mass. In this Comment, it is shown that the conclusions are based upon calculations which are in error, and that the amount of tension is not in fact decreased by such a rearrangement.
徐康熙; 郝泳涛
2014-01-01
In order to achieve the 3D fitting function and solve the problem of large algorithm time complexity of virtual try modeling, based on virtual reality technology, this paper tend to model clothing fabric by sprint-mass model. Then, based on Newton's second law, we analysis the spring-mass model-based forces of clothing fabric modeling. Combined with GPU-based physics engine PhysX, build the 3D fitting room, simulate the sports interactive situation of fabrics and mannequin. Finally add mannequin adjustment, the election of clothing, dressing and other functions. Built under Windows platform, designed and devel-oped by using VisualStudio2008, combined with the comprehensive application of virtual reality technology, we establish the 3D fitting system, including functions such as clothing select, dressing, body parameter adjustment .%为了实现3D试衣功能及解决虚拟试衣建模算法时间复杂度比较大的问题，该文结合虚拟现实等技术，首先用弹簧-质点模型对服装布料进行建模，然后以牛顿第二定律为理论基础分析以质点-弹簧模型建模的服装布料的受力情况，结合以GPU为基础的物理引擎PhysX，建立3D试衣间，仿真服装布料与人体模型的运动交互状况。最后加入人体模型调整、选衣、试衣等功能。该系统在Windows平台下，利用VisualStudio2008设计开发，结合虚拟现实等技术的综合应用，建立了一套包括选衣、试衣、人体参数调整等功能的3D试衣系统。
Metin Orbay; Telhat Ozdogan
2003-01-01
The comment of Guseinov is irrelevant and also unjust. In contrast to his comment, we show that theobtained electric multipole moment values for some first-row diatomic molecules are original and better than his values(I.I. Guseinov, E. Akin, and A.M. Rzaeva, J. Mol. Struct. (Theochem) 453 (1998) 163) with respect to Hartree-Fockvalues. Moreover, it must be noted that all the formulas are cited in our paper (M. Orbay and T. Ozdogan, Commun.Theor. Phys. (Beijing, China) 35 (2001) 585) and corrigendum (M. Orbay and T. Ozdogan, Commun. Theor. Phys.(Beijing, China) 37 (2002) 768).
Fakhri, H.; Dehghani, A.
2008-04-01
We call attention to the misconstructions in a paper recently published in this journal [A. Chenaghlou and O. Faizy, J. Math. Phys. 48, 112106 (2007)]. It is shown that the constructed Barut-Girardello coherent states are problematic from the view points of the definition and the measure. The claimed coherencies for the Kravchuk functions cannot actually exist.
Pierri, Michelle; O'Regan, Donal
2016-04-01
The abstract results and applications presented in "Controllability of fractional neutral stochastic functional differential systems, Z. Angew. Math. Phys. 65 (2014), no. 5, 941-959, are not correct. Moreover, the class of differential control problems studied in [1] is not H-controllable.
Srinivasan, Bikshandarkoil R.
2015-01-01
The unit cell parameters, infrared and UV-Vis spectral data reported in the paper by Vijayabhaskaran et al (Indian J Pure & App Phys 49 (2011) 340-343) cannot belong to the colourless crystalline compound formulated as copper mercury thiocyanate CuHg(SCN)4 as claimed by the authors.
Brandbyge, Mads
2014-01-01
In a recent paper Reuter and Harrison [J. Chem. Phys.139, 114104 (2013)] question the widely used mean-field electron transport theories, which employ nonorthogonal localized basis sets. They claim these can violate an “implicit decoupling assumption,” leading to wrong results for the current...
Mikhailovskii, A.B.; Sharapov, S.E.; Timofeev, A.V. [JET Joint Undertaking, Abingdon, Oxfordshire OX14 3EA (United Kingdom)
2000-07-01
The theory of MHD modes driven by strong ExB velocity shear in tokamaks given by Mikhailovskii and Sharapov (2000 Plasma Phys. Control. Fusion 42 57) is revised. It is suggested that, in the approximations taken by these authors, there are no MHD eigenmodes if the cross-field velocity shear is larger then the Alfven frequency shear. (author)
Xuan Xiao
Full Text Available Nuclear receptors (NRs form a family of ligand-activated transcription factors that regulate a wide variety of biological processes, such as homeostasis, reproduction, development, and metabolism. Human genome contains 48 genes encoding NRs. These receptors have become one of the most important targets for therapeutic drug development. According to their different action mechanisms or functions, NRs have been classified into seven subfamilies. With the avalanche of protein sequences generated in the postgenomic age, we are facing the following challenging problems. Given an uncharacterized protein sequence, how can we identify whether it is a nuclear receptor? If it is, what subfamily it belongs to? To address these problems, we developed a predictor called iNR-PhysChem in which the protein samples were expressed by a novel mode of pseudo amino acid composition (PseAAC whose components were derived from a physical-chemical matrix via a series of auto-covariance and cross-covariance transformations. It was observed that the overall success rate achieved by iNR-PhysChem was over 98% in identifying NRs or non-NRs, and over 92% in identifying NRs among the following seven subfamilies: NR1--thyroid hormone like, NR2--HNF4-like, NR3--estrogen like, NR4--nerve growth factor IB-like, NR5--fushi tarazu-F1 like, NR6--germ cell nuclear factor like, and NR0--knirps like. These rates were derived by the jackknife tests on a stringent benchmark dataset in which none of protein sequences included has ≥60% pairwise sequence identity to any other in a same subset. As a user-friendly web-server, iNR-PhysChem is freely accessible to the public at either http://www.jci-bioinfo.cn/iNR-PhysChem or http://icpr.jci.edu.cn/bioinfo/iNR-PhysChem. Also a step-by-step guide is provided on how to use the web-server to get the desired results without the need to follow the complicated mathematics involved in developing the predictor. It is anticipated that iNR-PhysChem may
W. W. Lee, and R. A. Kolesnikov
2009-11-20
We show in this Response that the nonlinear Poisson's equation in our original paper derived from the drift kinetic approach can be verified by using the nonlinear gyrokinetic Poisson's equation of Dubin et al. [Phys. Fluids 26, 3524 (1983)]. This nonlinear contribution in φ2 is indeed of the order of k4⊥ in the long wavelength limit and remains finite for zero ion temperature, in contrast to the nonlinear term by Parra and Catto [Plasma Phys. Control. Fusion 50, 065014 (2008)], which is of the order of k2⊥ and diverges for Ti → 0. For comparison, the leading term for the gyrokinetic Poisson's equation in this limit is of the order of k2⊥φ,
Rabei, Eqab M.; Al-Jamel, A.; Widyan, H. [Physics Department, Al al-Bayt University, Mafraq (Jordan); Baleanu, D. [Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah (Saudi Arabia); Department of Mathematics and Computer Sciences, Cankaya University, Ankara (Turkey); Institute of Space Sciences, Magurele-Bucharest (Romania)
2014-03-15
In a recent paper, Jaradat et al. [J. Math. Phys. 53, 033505 (2012)] have presented the fractional form of the electromagnetic Lagrangian density within the Riemann-Liouville fractional derivative. They claimed that the Agrawal procedure [O. P. Agrawal, J. Math. Anal. Appl. 272, 368 (2002)] is used to obtain Maxwell's equations in the fractional form, and the Hamilton's equations of motion together with the conserved quantities obtained from fractional Noether's theorem are reported. In this comment, we draw the attention that there are some serious steps of the procedure used in their work are not applicable even though their final results are correct. Their work should have been done based on a formulation as reported by Baleanu and Muslih [Phys. Scr. 72, 119 (2005)].
Felińska, Ewa; Jaskólski, Zbigniew; Kosztołowicz, Michał
2012-12-01
A flow in the formulation and proof of Lemma 2.7 of E. Felińska, Z. Jaskólski, and M. M. Kosztołowicz, J. Math. Phys. 53, 033504 (2012) is fixed in Sec. I of this Erratum. This has no consequences for the rest of the paper. An essential error was made in Theorems 3.5, 3.6, and Corollary 3.7 of Sec. III of E. Felińska, Z. Jaskólski, and M. M. Kosztołowicz, J. Math. Phys. 53, 033504 (2012). As it was pointed out by V. Mazorchuk and K. Zhao ["Simple Virasoro modules which are locally finite over positive part," e-print arXiv:1205.5937v2 [math.RT
Paliathanasis, Andronikos; Tsamparlis, Michael
2016-01-01
We show that the recent results of \\ [Int. J. Mod. Phys. D 25 (2016) 1650051] on the application of Lie/Noether symmetries in scalar field cosmology are well-known in the literature while the problem could have been solved easily under a coordinate transformation. That follows from the property, that the admitted group of invariant transformations of dynamical system is independent on the coordinate system.
Friese, Daniel Henrik
2015-01-01
Published version, also available at http://dx.doi.org/10.1063/1.4930017 This addendum shows the detailed derivation of the fundamental equations for two-photon circular dichroism which are given in a very condensed form in the original publication [I. Tinoco, J. Chem. Phys. 62, 1006 (1975)]. In addition, some minor errors are corrected and some of the derivations in the original publication are commented.
Szmytkowski, Radoslaw
2011-01-01
In the paper commented on [J. Chem. Phys. 130 (2009) 144102], Cheng et al. derived a formula for the magnetic dipole shielding constant $\\sigma$ for the Dirac one-electron atom in its ground state. That formula involves an infinite series of ratios of the Euler's gamma functions. We show that with some algebra the series may be expressed in terms of elementary functions. This leads to a simple closed-form expression for the shielding constant.
Dash, G. N.
2005-11-01
The avalanche noise behavior of impact avalanche transit-time (IMPATT) diodes has been modeled by Reklaitis and Reggiani [J. Appl. Phys. 97, 043709 (2005)]. They have obtained general agreement of their results with those of McIntyre [IEEE Trans. Electron Devices ED-13, 164 (1966)]. However, McIntyre's theory predicts the opposite noise behavior from that observed in the IMPATT diode. Hence the applicability of the noise model of Reklaitis and Reggiani to IMPATT diode is questionable.
Demidova, M. V. [Department of Chemistry, Wright State University, Dayton, Ohio 45435 (United States); Division of NLP Technology, INTEPH Technology LLC, Dayton, Ohio 45066 (United States); Kudryavtsev, A. A. [Division of NLP Technology, INTEPH Technology LLC, Dayton, Ohio 45066 (United States); International Laboratory “Nonlocal Plasma in Nanotechnology and Medicine”, ITMO University, Kronverkskiy pr. 49, St. Petersburg 197101 (Russian Federation); Kurlyandskaya, I. P. [International Laboratory “Nonlocal Plasma in Nanotechnology and Medicine”, ITMO University, Kronverkskiy pr. 49, St. Petersburg 197101 (Russian Federation); Department of Optics, St. Petersburg State University, St. Petersburg 199034 (Russian Federation); Saifutdinov, A. I.; Stepanova, O. M. [Department of Optics, St. Petersburg State University, St. Petersburg 199034 (Russian Federation)
2015-09-15
Zobnin et al. have published a paper [Phys. Plasmas, 21, 113503 (2014)] on a topic of discharge physics in the presence of a sharp change in cylindrical discharge geometry. In the comment it is pointed out that for untrapped electrons a full kinetic equation, which includes dependences on spatial coordinates and energies, has to be used for the electron velocity distribution function determination. It is also unclear what probe theories Zobnin et al. have used in their paper for the calculation of electron current to the discharge tube wall.
Petrillo, V.; Rossi, A. R.; Serafini, L. [Università di Milano-INFN, Via Celoria, 16 Milano (Italy)
2013-12-15
We point out that in the equation for the electron distribution evolution during Thomson/Compton or undulator radiation used in the paper: “Competition between coherent emission and broadband spontaneous emission in the quantum free electron laser” by G. R. M. Robb and R. Bonifacio [Phys. Plasmas 20, 033106 (2013)], the weight function should be the distribution of the number of emitted photons and not the photon energy distribution. Nevertheless, the considerations expressed in this comment do not alter the conclusions drawn in the paper in object.
Petrillo, V.; Rossi, A. R.; Serafini, L.
2013-12-01
We point out that in the equation for the electron distribution evolution during Thomson/Compton or undulator radiation used in the paper: "Competition between coherent emission and broadband spontaneous emission in the quantum free electron laser" by G. R. M. Robb and R. Bonifacio [Phys. Plasmas 20, 033106 (2013)], the weight function should be the distribution of the number of emitted photons and not the photon energy distribution. Nevertheless, the considerations expressed in this comment do not alter the conclusions drawn in the paper in object.
Bietenholz, Wolfgang, E-mail: wolbi@nucleares.unam.mx; Chryssomalakos, Chryssomalis, E-mail: chryss@nucleares.unam.mx; Salgado, Marcelo, E-mail: marcelo@nucleares.unam.mx [Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, A.P. 70-543, México D.F. 04510, México (Mexico)
2015-10-15
We comment on a fatal flaw in the analysis contained in the work of Martínez-y-Romero et al., [J. Math. Phys. 54, 053509 (2013)], which concerns the motion of a point particle in an inverse square potential, and show that most conclusions reached there are wrong. In particular, the manifestly senseless claim that, in the attractive potential case, no bounded orbits exist for negative energies, is traced to a sign error. Several more mistakes, both in the classical and the quantum cases, are pointed out.
Galperin, Michael [Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California 92093 (United States); Ratner, Mark A. [Department of Chemistry, Northwestern University, Evanston, Illinois 60208 (United States); Nitzan, Abraham [School of Chemistry, Tel Aviv University, Tel Aviv 69978 (Israel)
2015-04-07
We discuss the derivation of the optical response in molecular junctions presented by U. Harbola et al. [J. Chem. Phys. 141, 074107 (2014)], which questions some terms in the theory of Raman scattering in molecular junctions developed in our earlier publications. We show that the terms considered in our theory represent the correct contribution to calculated Raman scattering and are in fact identical to those considered by Harbola et al. We also indicate drawbacks of the presented approach in treating the quantum transport part of the problem.
Karasiev, Valentin V
2016-01-01
A simple expression for the uniform electron gas (UEG) correlation energy, recently presented in Ref. [J. Chem. Phys. 145, 021101 (2016)], deviates from the reference quantum Monte-Carlo (QMC) data at large r_s. We propose to define one of the parameters from a requirement to match the large-rs QMC data. Functional with the new parameter provides much better agreement with the QMC data at large r_s without deterioration of the functional quality at small and intermediate r_s.
Reuter, Matthew G; Harrison, Robert J
2014-05-01
The thesis of Brandbyge's comment [J. Chem. Phys. 140, 177103 (2014)] is that our operator decoupling condition is immaterial to transport theories, and it appeals to discussions of nonorthogonal basis sets in transport calculations in its arguments. We maintain that the operator condition is to be preferred over the usual matrix conditions and subsequently detail problems in the existing approaches. From this operator perspective, we conclude that nonorthogonal projectors cannot be used and that the projectors must be selected to satisfy the operator decoupling condition. Because these conclusions pertain to operators, the choice of basis set is not germane.
Hermansen, Christian; Mauro, John C; Yue, Yuanzheng
2015-03-14
In our recent paper [C. Hermansen, J. C. Mauro, and Y.-Z. Yue, J. Chem. Phys. 140, 154501 (2014)], we applied temperature-dependent constraint theory to model the glass transition temperature (Tg) and liquid fragility index (m) of alkali phosphate glasses. Sidebottom commented on this paper concerning the m values obtained by differential scanning calorimetry (DSC) [D. L. Sidebottom, J. Chem. Phys. 142, ⬛ (2015)]. We have considered Sidebottom's comments carefully and conclude that the m values of phosphate liquids obtained by DSC are reliable, except for the NaPO3 and possibly P2O5 compositions. Based on his dynamic light scattering measurements, Sidebottom has found that P2O5 is a strong liquid with m ≈ 20. However, based on the heat capacity jump at Tg and the stretching exponent of the relaxation function, P2O5 should be classified as an intermediate fragile liquid with m ≈ 40. We also argue that m cannot be universally related to the average connectivity of the network and point out several inconsistencies with this view.
Albertsen, Niels Christian
1989-01-01
A new system of poles for the Green's function for a dielectric-coated cylinder has been found. In general, these poles correspond to creeping waves, which are strongly attenuated except for very thick coatings. For radii below a critical value, one of the new poles replaces one of those previous...
Puggioni, D.; Rondinelli, J. M.
2016-02-01
In their article, Zhao et al. report the synthesis of SrIrO3 at high temperature and high pressure [J. Appl. Phys. 103, 103706 (2008)]. Under these conditions, the crystal structure of SrIrO3 can be stabilized as an orthorhombic perovskite with space group Pnma. They refine the lattice parameters and list the Wyckoff orbits and atomic coordinates. We believe that Zhao and coworkers made an unintentional error in reporting the crystal structure, which may adversely affect the description of the electronic structure. Indeed, we show the reported structure does not define a standard perovskite with nearly rigid IrO6 octahedral tilts and rather exhibits a structural discrepancy with respect to the equilibrium structure obtained from density functional calculations.
de Abreu, Rodrigo
2010-01-01
A recent paper by Gislason published in Am. J. Phys. deals with the celebrated example of the so-called "adiabatic piston", a system involving two ideal gases contained in a horizontal cylinder and separated by an insulating piston that moves without friction. While the analysis presented in that paper is rather comprehensive, very interesting and useful as a teaching tool, it can be somewhat misleading if not taken within its appropriate context. As a matter of fact, the evolution to equilibrium involves two phases, a faster one leading to the equalization of pressures, and a slower one bringing the system to identical temperatures. Although Gislason addresses only the first process, we note that the final state after the second phase, the evolution to equal temperatures once the pressures are the same, is described by thermodynamics. Therefore, the discussion of the adiabatic piston given by Gislason can and should be enriched, in order to promote a proper and general view of thermodynamics.
Comment on 'The diatomic dication CuZn{sup 2+} in the gas phase' [J. Chem. Phys. 135, 034306 (2011)
Fiser, Jiri [Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Hlavova 2030, 128 40 Prague 2 (Czech Republic); Diez, Reinaldo Pis [Departamento de Quimica, CEQUINOR, Centro de Quimica Inorganica (CONICET, UNLP), Facultad de Ciencias Exactas, UNLP, CC 962, 1900 La Plata (Argentina); Franzreb, Klaus [Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287 (United States); Alonso, Julio A. [Departamento de Fisica Teorica, Universidad de Valladolid, E-47011 Valladolid (Spain)
2013-02-21
In this Comment, the density functional theory (DFT) calculations carried out by Diez et al. [J. Chem. Phys. 135, 034306 (2011)] are revised within the framework of the coupled-cluster single double triple method. These more sophisticated calculations allow us to show that the {sup 2}{Sigma}{sup +} electronic ground state of CuZn{sup 2+}, characterized as the metastable ground state by DFT calculations, is a repulsive state instead. The {sup 2}{Delta} and {sup 2}{Pi} metastable states of CuZn{sup 2+}, on the other hand, should be responsible for the formation mechanism of the dication through the near-resonant electron transfer CuZn{sup +}+ Ar{sup +}{yields} CuZn{sup 2+}+ Ar reaction.
Di Bari, P.; Foot, R.; Volkas, R. R.; Wong, Y. Y. Y.
2001-08-01
We comment on the recent paper by A.D. Dolgov, S.H. Hansen, S. Pastor and D.V. Semikoz (DHPS) [Astropart. Phys. 14 (2000) 79] on the generation of neutrino asymmetries from active-sterile neutrino oscillations. We demonstrate that the approximate asymmetry evolution equation obtained therein is an expansion, up to a minor discrepancy, of the well-established static approximation equation, valid only when the supposedly new higher order correction term is small. In the regime where this so-called "back-reaction" term is large and artificially terminates the asymmetry growth, their evolution equation ceases to be a faithful approximation to the quantum kinetic equations simply because pure Mikheyev-Smirnov-Wolfenstein (MSW) transitions have been neglected. At low temperatures the MSW effect is the dominant asymmetry amplifier. Neither the static nor the DHPS approach contains this important physics. Therefore we conclude that the DHPS results have sufficient veracity at the onset of explosive asymmetry generation, but are invalid in the ensuing low temperature epoch where MSW conversions are able to enhance the asymmetry to values of order 0.2-0.37. DHPS do claim to find a significant final asymmetry for very large δm2 values. However, for this regime the effective potential they employed is not valid.
Szmulowicz, F., E-mail: Frank.Szmulowicz.ctr@wpafb.af.mil [University of Dayton Research Institute, 300 College Park Ave., Dayton, Ohio 45469-0072 (United States)
2014-04-14
The purpose of this comment is to point out that the paper by Safa, Asgari, and Faraone [J. Appl. Phys. 114, 053712 (2013)] (SAF) on electronic transport in superlattices contains a number of errors in physics and execution. By dealing with a finite number of periods and forcing the wave function to be zero at the upper and lower boundaries of the superlattice stack, SAF have turned the system into a quantum well for which the momentum along the growth axis is not a good quantum number, so that the bands in the growth direction are flat and the corresponding carrier velocities and vertical mobilities are zero. A number of other errors allow the authors to get nonzero results and to reach conclusions that qualitatively mirror those of Szmulowicz, Haugan, Elhamri, and Brown [Phys. Rev. B 84, 155307 (2011)].
Szmulowicz, F.
2014-04-01
The purpose of this comment is to point out that the paper by Safa, Asgari, and Faraone [J. Appl. Phys. 114, 053712 (2013)] (SAF) on electronic transport in superlattices contains a number of errors in physics and execution. By dealing with a finite number of periods and forcing the wave function to be zero at the upper and lower boundaries of the superlattice stack, SAF have turned the system into a quantum well for which the momentum along the growth axis is not a good quantum number, so that the bands in the growth direction are flat and the corresponding carrier velocities and vertical mobilities are zero. A number of other errors allow the authors to get nonzero results and to reach conclusions that qualitatively mirror those of Szmulowicz, Haugan, Elhamri, and Brown [Phys. Rev. B 84, 155307 (2011)].
Temperature Variation of the Elementary Excitation Spectrum of Thin Liquid 4He Films
1992-07-01
Iwamoto, Prog. Theor. Phys. 44, 1121 (1970). 7. H. J. Maris , Rev. Mod. Phys. 49, 341 (1977). 8. S. A. Chin and E. Krotscheck, Phys. Rev. Lett. 65...J. D. Reppy, Phys. Rev. Lett. 65, 2410 (1990); M. Kriss and I. Rudnick, J. Low Temp. Phys. 3, 339 (1970); D. Finotello, K. A. Gillis, A. Wong and M. H
Investigation of Impurities in type-II InAs/GaSb Superlattices via Capacitance-Voltage Measurement
2013-07-17
Phys. Lett. 92, 071102 (2008). 17T. V. Chandrasekhar Rao, J. Antoszewski, L. Faraone , J. B. Rodriguez, E. Plis, and S. Krishna, Appl. Phys. Lett. 92...1993). 25G. A. Umana-Membreno, B. Klein, H. Kala, J. Antoszewski, N. Gautam, M. N. Kutty, E. Plis, S. Krishna, and L. Faraone , Appl. Phys. Lett. 101
Sadhuram, Y.; Murty, T.V.R.; Sarma, Y.V.B; Murty, V.S.N.
stream_size 2 stream_content_type text/plain stream_name J_Phys_Oceanogr_31_1933.pdf.txt stream_source_info J_Phys_Oceanogr_31_1933.pdf.txt Content-Encoding ISO-8859-1 Content-Type text/plain; charset=ISO-8859-1 ...
Bestemmelse af lette kæder i serum
Hansen, Charlotte Toftmann; Nielsen, Lars; Münster, Anna-Marie Bloch
2010-01-01
Free light chains of the immunoglobulin are identical to the Bence Jones protein. In 2001, a commercially available assay for the measurement of free light chains in serum (sFLC) became available (FreeLite Free Kappa & Free Lambda assay). Evidence from the use of the sFLC analysis is rapidly...
Kammermeier, T. [Institut fuer Energie und Umwelttechnik e.V. (IUTA), Luftreinhaltung and Nachhaltige Nanotechnologie Unit, Bliersheimer Strasse 60, 47229 Duisburg (Germany); Fakultaet fuer Physik und CeNIDE, Universitaet Duisburg-Essen, 47057 Duisburg (Germany); Ney, A. [Fakultaet fuer Physik und CeNIDE, Universitaet Duisburg-Essen, 47057 Duisburg (Germany); Wieck, A.D. [Angewandte Festkoerperphysik, Ruhr-Universitaet Bochum, Universitaetsstr. 150, NB Building, 44780 Bochum (Germany)
2011-08-15
In a comment by Gehlhoff et al. on our work on ''Paramagnetic and ferromagnetic resonance studies on dilute magnetic semiconductors based on GaN'' [Phys. Status Solidi A 205, 1872 (2008)] the authors claim a contradictory explanation of angular dependent magnetic resonance measurements. Here we discuss their - solely based on computer simulations - claims. We show that an interpretation limited on magnetic impurities can hardly be used to explain the complex magnetic behavior. (Copyright copyright 2011 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)
El-Mistikawy, Tarek M. A.
2011-12-01
In their article (Fundamental flows with nonlinear slip conditions: exact solutions, R. Ellahi, T. Hayat, F. M. Mahomed and A. Zeeshan, Z. Angew. Math. Phys. 61 (2010) 877-888.), the authors considered three simple cases of the steady flow of a third grade fluid between parallel plates with slip conditions; namely, Couette flow, Poiseuille flow, and generalized Couette flow. They obtained exact solutions, which were utilized in a way that did not lead to useful results. Their conclusion that the Couette flow cannot be obtained from the generalized Couette flow, by dropping the pressure gradient, is incorrect. Meaningful results based on their solution are herein presented.
Weniger, Ernst Joachim
2007-01-01
In the years from 2001 to 2006, Guseinov and his coworkers published 40 articles on the derivation and application of one-range addition theorems. In E. J. Weniger, Extended Comment on ``One-Range Addition Theorems for Coulomb Interaction Potential and Its Derivatives'' by I. I. Guseinov (Chem. Phys. Vol. 309 (2005), pp. 209 - 213), arXiv:0704.1088v2 [math-ph], it was argued that Guseinov's treatment of one-range addition theorems is at best questionable and in some cases fundamentally flawed. In I. I. Guseinov, Extended Rejoinder to "Extended Comment on "One-Range Addition Theorems for Coulomb Interaction Potential and Its Derivatives'' by I. I. Guseinov (Chem. Phys. and Vol. 309 (2005)'', pp. 209-213), arXiv:0706.0975v2 [physics.chem-ph], these claims were disputed. To clarify the situation, the most serious mathematical flaws in Guseinov's treatment of one-range addition theorems are discussed in more depth.
Chekanov, S.; Boomsma, J.; High Energy Physics
2009-12-22
The program InvMass has been developed to perform a general model-independent search for new particles using the ATLAS detector at the Large Hadron Collider (LHC), a proton-proton collider at CERN. The search is performed by examining statistically significant variations from the Standard Model predictions in exclusive event classes classified according to the number of identified objects. The program, called InvMass, finds all relevant particle groups identified with the ATLAS detector and analyzes their production rates, invariant masses and the total transverse momenta. The generic code of InvMass can easily be adapted for any particle types identified with the ATLAS detector. Several benchmark tests are presented.
Ghosh, Karabi
2017-02-01
We briefly comment on a paper by N.A. Gentile [J. Comput. Phys. 230 (2011) 5100-5114] in which the Fleck factor has been modified to include the effects of temperature-dependent opacities in the implicit Monte Carlo algorithm developed by Fleck and Cummings [1,2]. Instead of the Fleck factor, f = 1 / (1 + βcΔtσP), the author derived the modified Fleck factor g = 1 / (1 + βcΔtσP - min [σP‧ (a Tr4 - aT4) cΔt/ρCV, 0 ]) to be used in the Implicit Monte Carlo (IMC) algorithm in order to obtain more accurate solutions with much larger time steps. Here β = 4 aT3 / ρCV, σP is the Planck opacity and the derivative of Planck opacity w.r.t. the material temperature is σP‧ = dσP / dT.
Akbari-Moghanjoughi, M
2011-01-01
Recently, Yan-Xia Xu, et al. in the article Ref. [Phys. Plasmas \\textbf{18}, 052301 (2011)] have studied the effects of various plasma parameters on interaction of two ion-acoustic solitary waves in an unmagnetized three-dimensional electron-positron-ion quantum plasma. They have used the extended reductive perturbation technique, the so-called, extended Poincare'-Lighthill-Kuo (PLK) technique, to deduce from the model governing the quantum hydrodynamics (QHD) differential equations leading to the soliton dynamical properties, namely, Korteweg-de Vries evolution equations (one for each wave) and coupled differential equations describing the phase-shift in trajectories of solitons due to the two dimensional collision. The variation of the calculated collision phase-shifts are then numerically inspected in terms of numerous plasma fractional parameters. In this comment we give some notes specific to the validity of the results of above-mentioned article and refer to important misconceptions about the use of the...
Aggarwal, K M
2013-01-01
We report calculations of energy levels and oscillator strengths for transitions in W XL, undertaken with the general-purpose relativistic atomic structure package ({\\sc grasp}) and flexible atomic code ({\\sc fac}). Comparisons are made with existing results and the accuracy of the data is assessed. Discrepancies with the most recent results of S. Aggarwal et al. [Can. J. Phys. {\\bf 91} (2013) 394] are up to 0.4 Ryd and up to two orders of magnitude for energy levels and oscillator strengths, respectively. Discrepancies for lifetimes are even larger, up to four orders of magnitude for some levels. Our energy levels are estimated to be accurate to better than 0.5% (i.e. 0.2 Ryd), whereas results for oscillator strengths and lifetimes should be accurate to better than 20%.
Z. Steinczinger; L. Pusztai
2013-01-01
... (Pusztai et al 2008, J. Chem. Phys., 129 184103), here two more recent, polarizable potential sets, SWM4-DP (Lamoureux et al., Chem. Phys. Lett., 2006, 418 245) and BK3 (Kiss et al. J. Chem. Phys., 2013, 138 204507...
A Caltech MURI Center for Quantum Networks
2006-05-31
1470 (1997). 6. Grangier , P., Walls, D. F. & Gheri, K. M. Comment on “Strongly interacting photons in a nonlinear cavity”. Phys. Rev. Lett. 81, 2833...Kimble, M. Dagenais, L. Mandel, Phys. Rev. Lett. 39, 691 (1977). 9. P. Grangier , G. Roger, A. Aspect, Europhys. Lett. 1, 173 (1986). 10. F. Diedrich, H...Lett. 86, 1502 (2001). 15. R. Brouri, A. Beveratos, J.-P. Poizat, P. Grangier , Opt. Lett. 25, 1294 (2000). 16. C. Kurtsiefer, S. Mayer, P. Zarda, H
Cooling by heating in a mesoscopic two-state device
Entin-Wohlman, O.; Imry, Y.
2013-01-01
We reanalyse the work of Cleuren et al., Phys. Rev. Lett. 109, 248902 (2012), in the light of Jiang et al. Phys. Rev. B 85, 075412 (2012). The condition for cooling enforces its rate to be exponentially small at low temperatures. Thus, the difficulty with the "dynamic version of the third law" found by Levy et al., Phys. Rev. Lett. 109, 248901 (2012) and Allahverdyan et al., Phys. Rev. Lett. 109, 248903 (2012) is resolved.
Experimental Testing of Corpuscular Radiation Detectors. Volume 1. Revision 1
1989-09-07
Lipkin, Phys. Rev. Lett. 58 1176 (1987); Y. Aharonov , F. T. Avignone, A. Casher and S. Nussinov, Phys. Rev. Lett. 58 1173 (1987); G. T. Trammell and...unpublished Caltech preprint, July 1986; H. J. Lipkin, Phys. Rev. Lett. 58 1176 (1987); Y. Aharonov , F. T. Avignone, A.3 Casher and S. Nussinov, Phys...temperature. We noticed changes of about 5% from Summer to Winter 1988-1989. Fortunately, these changes in I period were slow enough that the effect could
Adare, A; Aidala, C; Ajitanand, N N; Akiba, Y; Al-Bataineh, H; Alexander, J; Al-Ta'ani, H; Angerami, A; Aoki, K; Apadula, N; Aphecetche, L; Aramaki, Y; Asai, J; Atomssa, E T; Averbeck, R; Awes, T C; Azmoun, B; Babintsev, V; Bai, M; Baksay, G; Baksay, L; Baldisseri, A; Barish, K N; Barnes, P D; Bassalleck, B; Basye, A T; Bathe, S; Batsouli, S; Baublis, V; Baumann, C; Bazilevsky, A; Belikov, S; Belmont, R; Bennett, R; Berdnikov, A; Berdnikov, Y; Bhom, J H; Bickley, A A; Blau, D S; Boissevain, J G; Bok, J S; Borel, H; Borggren, N; Boyle, K; Brooks, M L; Buesching, H; Bumazhnov, V; Bunce, G; Butsyk, S; Camacho, C M; Campbell, S; Caringi, A; Chang, B S; Chang, W C; Charvet, J -L; Chen, C -H; Chernichenko, S; Chi, C Y; Chiu, M; Choi, I J; Choi, J B; Choudhury, R K; Christiansen, P; Chujo, T; Chung, P; Churyn, A; Chvala, O; Cianciolo, V; Citron, Z; Cole, B A; del Valle, Z Conesa; Connors, M; Constantin, P; Csanád, M; Csörgö, T; Dahms, T; Dairaku, S; Danchev, I; Das, K; Datta, A; David, G; Dayananda, M K; Denisov, A; d'Enterria, D; Deshpande, A; Desmond, E J; Dharmawardane, K V; Dietzsch, O; Dion, A; Donadelli, M; Orazio, L D; Drapier, O; Drees, A; Drees, K A; Dubey, A K; Durham, J M; Durum, A; Dutta, D; Dzhordzhadze, V; Edwards, S; Efremenko, Y V; Ellinghaus, F; Engelmore, T; Enokizono, A; En'yo, H; Esumi, S; Eyser, K O; Fadem, B; Fields, D E; Finger,, M; Finger, M; Fleuret, F; Fokin, S L; Fraenkel, Z; Frantz, J E; Franz, A; Frawley, A D; Fujiwara, K; Fukao, Y; Fusayasu, T; Garishvili, I; Glenn, A; Gong, H; Gonin, M; Gosset, J; Goto, Y; de Cassagnac, R Granier; Grau, N; Greene, S V; Grim, G; Perdekamp, M Grosse; Gunji, T; Gustafsson, H -Å; Henni, A Hadj; Haggerty, J S; Hahn, K I; Hamagaki, H; Hamblen, J; Hanks, J; Han, R; Hartouni, E P; Haruna, K; Haslum, E; Hayano, R; Heffner, M; Hemmick, T K; Hester, T; He, X; Hill, J C; Hohlmann, M; Holzmann, W; Homma, K; Hong, B; Horaguchi, T; Hornback, D; Huang, S; Ichihara, T; Ichimiya, R; Iinuma, H; Ikeda, Y; Imai, K; Imrek, J; Inaba, M; Isenhower, D; Ishihara, M; Isobe, T; Issah, M; Isupov, A; Ivanischev, D; Iwanaga, Y; Jia, B V Jacak J; Jiang, X; Jin, J; Johnson, B M; Jones, T; Joo, K S; Jouan, D; Jumper, D S; Kajihara, F; Kametani, S; Kamihara, N; Kamin, J; Kang, J H; Kapustinsky, J; Karatsu, K; Kasai, M; Kawall, D; Kawashima, M; Kazantsev, A V; Kempel, T; Khanzadeev, A; Kijima, K M; Kikuchi, J; Kim, A; Kim, B I; Kim, D H; Kim, D J; Kim, E J; Kim, E; Kim, S H; Kim, Y -J; Kinney, E; Kiriluk, K; Kiss, Á; Kistenev, E; Klay, J; Klein-Boesing, C; Kochenda, L; Komkov, B; Konno, M; Koster, J; Kozlov, A; Král, A; Kravitz, A; Kunde, G J; Kurita, K; Kurosawa, M; Kweon, M J; Kwon, Y; Kyle, G S; Lacey, R; Lai, Y S; Lajoie, J G; Layton, D; Lebedev, A; Lee, D M; Lee, J; Lee, K B; Lee, K S; Lee, T; Leitch, M J; Leite, M A L; Lenzi, B; Lichtenwalner, P; Liebing, P; Levy, L A Linden; Liška, T; Litvinenko, A; Liu, H; Liu, M X; Li, X; Love, B; Lynch, D; Maguire, C F; Makdisi, Y I; Malakhov, A; Malik, M D; Manko, V I; Mannel, E; Mao, Y; Mašek, L; Masui, H; Matathias, F; McCumber, M; McGaughey, P L; Means, N; Meredith, B; Miake, Y; Mibe, T; Mignerey, A C; Mikeš, P; Miki, K; Milov, A; Mishra, M; Mitchell, J T; Mohanty, A K; Moon, H J; Morino, Y; Morreale, A; Morrison, D P; Moukhanova, T V; Mukhopadhyay, D; Murakami, T; Murata, J; Nagamiya, S; Nagle, J L; Naglis, M; Nagy, M I; Nakagawa, I; Nakamiya, Y; Nakamura, K R; Nakamura, T; Nakano, K; Nam, S; Newby, J; Nguyen, M; Nihashi, M; Niita, T; Nouicer, R; Nyanin, A S; Oakley, C; O'Brien, E; Oda, S X; Ogilvie, C A; Okada, K; Oka, M; Onuki, Y; Oskarsson, A; Ouchida, M; Ozawa, K; Pak, R; Palounek, A P T; Pantuev, V; Papavassiliou, V; Park, I H; Park, J; Park, S K; Park, W J; Pate, S F; Pei, H; Peng, J -C; Pereira, H; Peresedov, V; Peressounko, D Yu; Petti, R; Pinkenburg, C; Pisani, R P; Proissl, M; Purschke, M L; Purwar, A K; Qu, H; Rak, J; Rakotozafindrabe, A; Ravinovich, I; Read, K F; Rembeczki, S; Reygers, K; Riabov, V; Riabov, Y; Richardson, E; Roach, D; Roche, G; Rolnick, S D; Rosati, M; Rosen, C A; Rosendahl, S S E; Rosnet, P; Rukoyatkin, P; Ružička, P; Rykov, V L; Sahlmueller, B; Saito, N; Sakaguchi, T; Sakai, S; Sakashita, K; Samsonov, V; Sano, S; Sato, T; Sawada, S; Sedgwick, K; Seele, J; Seidl, R; Semenov, A Yu; Semenov, V; Seto, R; Sharma, D; Shein, I; Shibata, T -A; Shigaki, K; Shimomura, M; Shoji, K; Shukla, P; Sickles, A; Silva, C L; Silvermyr, D; Silvestre, C; Sim, K S; Singh, B K; Singh, C P; Singh, V; Slunečka, M; Soldatov, A; Soltz, R A; Sondheim, W E; Sorensen, S P; Sourikova, I V; Staley, F; Stankus, P W; Stenlund, E; Stepanov, M; Ster, A; Stoll, S P; Sugitate, T; Suire, C; Sukhanov, A; Sziklai, J; Takagui, E M; Taketani, A; Tanabe, R; Tanaka, Y; Taneja, S; Tanida, K; Tannenbaum, M J; Tarafdar, S; Taranenko, A; Tarján, P; Themann, H; Thomas, D; Thomas, T L; Togawa, M; Toia, A; Tomášek, L; Tomita, Y; Torii, H; Towell, R S
2012-01-01
We previously reported [Phys. Rev. D 82, 112008 (2010)] measurements of transverse single-spin asymmetries, A_N, in J/psi production from transversely polarized p+p collisions at sqrt(s)=200 GeV with data taken by the PHENIX experiment at the Relativistic Heavy Ion Collider in 2006 and 2008. Subsequently, we have found errors in the analysis procedures for the 2008 data, which resulted in an erroneous value for the extracted A_N. The errors affected the sorting of events into the correct left/right and forward/backward bins. This produced an incorrect value for the 2008 result, but the 2006 result is unaffected. We have conducted two independent reanalyses with these errors corrected, and we present here the corrected values for the 2008 data and the combined results for 2006 and 2008. The new combined spin asymmetry in the forward region is A_N = -0.026+/-0.026(stat)+/-0.003(sys). Since this asymmetry is consistent with zero, we no longer claim that our results suggest a possible non-zero trigluon correlatio...
Cankurtaran, M.; Celik, H. [Hacettepe University, Faculty of Engineering, Department of Physics, Beytepe, 06800 Ankara (Turkey)
2007-03-15
Recently, Gamal et al. [phys. stat. sol. (a) 191, 322 (2002)] reported the results of electrical conductivity, Hall effect and thermoelectric power (TEP) measurements on Tl{sub 5}Te{sub 3} single crystals. The samples used in the study were p-type semiconductors. From the experimental data for the temperature dependence of TEP, Gamal et al. determined the values of 1.6 x 10{sup -41} kg and 1.5 x 10{sup -40} kg, respectively, for the effective masses of electrons and holes in p-type Tl{sub 5}Te{sub 3}, which are about ten orders of magnitude smaller than the free electron mass, 9.11 x 10{sup -31} kg. We argue that the anomalously small values obtained for the effective mass of charge carriers in Tl{sub 5}Te{sub 3} have no physical significance. (copyright 2007 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)
Discrete breathers in Josephson ladders
Trias, E.; Mazo, J.J.; Brinkman, A.; Orlando, T.P.
2001-01-01
We present a study of nonlinear localized excitations called discrete breathers in a superconducting array. These localized solutions were recently observed in Josephson-junction ladder arrays by two different experimental groups [Phys. Rev. Lett. 84 (2000) 741; Phys. Rev. Lett. 84 (2000) 745; Phys.
Effect of intermonolayer coupling on the phase behavior of lipid bilayers
Zhang, Zhengping; Zuckermann, Martin J.; Mouritsen, Ole G.
1992-01-01
involving standard Monte Carlo simulation, as well as the extrapolation method of Ferrenberg and Swendsen [Phys. Rev. Lett. 61, 2635 (1988)] and the Lee-Kosterlitz technique [Phys. Rev. Lett. 65, 137 (1990); Phys. Rev. B 43, 3265 (1991)]. It is found that the absence of a phase transition in a set...
Formation of Porous Silicon Carbide and its Suitability as a Chemical and Temperature Detector
2008-12-19
Auner, G. W. J. Appl. Phys. 2000, 87, 3101. (7) Serina , F.; Ng, K. Y. S.; Huang, C.; Auner, G. W.; Rimai, L.; Naik, R. Appl. Phys. Lett. 2001, 79...Electrochemistry 2001, 70, 174. 119 (34) Serina , F.; Ng, K. Y. S.; Huang, C.; Auner, G. W.; Rimai, L.; Naik, R. Appl. Phys. Lett. 2001, 79, 3350
Luminescent Properties of Semiconductor Electrodes.
2014-09-26
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1988-01-01
Fork, J. P. Gordon, Opt. Lett. 10, 131 (1985) 3. F. Salin, P. Grangier , G. Roger, A. Brun, Phys. Rev. Lett. 56, 1132, (1986) and Phys. Rev. Lett. 60...Soc. Am. B2, 680 (1985). 4. O.E. Martinez, R.L. Fork and J.P. Gordon, J. Opt. Soc. Am. B2, 753 (1085). 5. F. Salin, P. Grangier , G. Roger and A. Brun...Phys. Rev. Lctt. 56, 1132 (1985). 6. F. Salin, P. Grangier , G. Roger and A. Brun, Phys, Rev. Lett. 60, 569 (1988). 7. F.W. Wise, I.A. Walmsley and
High-Efficiency and High-Power Mid-Wave Infrared Cascade Lasers
2009-08-01
22, pp. 218–221, 2007. [37] S. Katz , A. Friedrich , G. Boehm, and M.-C. Amann, Appl. Phys. Lett., vol. 92, p. 181103, 2008. [38] Sirtori, F...Spagnolo, G. Scamarcio, H. Page, and C. Sirtori, Appl. Phys. Lett. 84, 3690 (2004). [87] S. Katz , A. Friedrich , G. Boehm, and M.-C. Amann, Appl...S. N. G. Chu, and A. Y. Cho, Appl. Phys. Lett. 78, 25 (2001). [24] S. Katz , A. Vizbaras, G. Boehm, and M.-C. Amann, Appl. Phys. Lett. 94, 151106
Brik, M. G.; Avram, C.N.; Avram, N.M.
2009-01-01
Erratum to ?Comparative study of crystal field effects for Ni2+ ion in LiGa5O8, MgF2 and AgCl crystals? [J. Phys. Chem. Solid, In Press, Corrected Proof; doi:10.1016/j.jpcs.2008.01.004] correspondance: Corresponding author. (Avram, N.M.) (Avram, N.M.) Fukui Institute for Fundamental Chemistry--> , Kyoto University--> , 34?4--> , Takano Nishihiraki-cho--> , Sakyo- ku--> , Kyoto 60...
Phonon Squeezing by Raman Scattering.
Nori, Franco; Hu, Xuedong
1997-03-01
We have studied quantum fluctuation properties of a crystal lattice, and proposed several mechanisms to achieve this goal(X. Hu and F. Nori, Phys. Rev. Lett. 76, 2294 (1996); Phys. Rev. B 53, 2419 (1996); preprint.).
Liang, Lin-mei; Li, Cheng-zu
2005-02-01
This Letter presents nonlocality without inequalities for two-qubit mixed states. This Letter was mainly sparked by Cabello's work [Phys. Rev. A 65 (2003) 032108] and is an extension of our recent work [Phys. Lett. A 318 (2003) 300].
1992-01-01
51 J. J. Barton, Phys. Rev. Lett. 61, 1356 (1988) [6] S. Hardcastle, Z. -L. Han, G. R. Harp, J1. Zhang, H. L. Chen, D. K. Saldin and B. P. Tonner...Quian, Phys, Rev. B (in press). [11] W. Quian, J.C.H. Spence and J.M. Zuo, Acta Cryst. (in press). [12] G.R. Harp, D.K. Saldin , and B.P. Tonner, Phys...Lett. 67, 3102 (19--). (15] J.J. Barton, Phys. Rev. Lett. 67, 3106 (1991). [16) D.K. Saldin , G.R. Harp, B.L. Chen, and B.P. Tonner, Phys. Rev. B 44
Dispersion Interactions in Calculations of Properties of Energetic Materials
2010-01-01
Phys., 71, 4993, 1979. 10. Hesselmann, A., G. Jansen, and M. Schültz, J. Chem. Phys., 122, 014103, 2005. 11. Bukowski , R., R. Podeszwa, and K...Szalewicz, Chem. Phys. Lett., 414, 111, 2005. 12. Podeszwa, R., R. Bukowski , and K. Szalewicz, J. Chem. Theory Comput., 2, 400, 2006. 13...Podeszwa, R., R. Bukowski , and K. Szalewicz, J. Phys. Chem. A, 110, 10345, 2006. 14. Podeszwa, R. and K. Szalewicz, Phys. Chem. Chem. Phys., 10, 2735
Comment on ``Failure of the Work-Hamiltonian Connection for Free-Energy Calculations''
Peliti, Luca
2008-08-01
A Comment on the Letter by Jose M. G. Vilar and J. Miguel Rubi, Phys. Rev. Lett.PRLTAO0031-9007 100, 020601 (2008)10.1103/PhysRevLett.100.020601. The authors of the Letter offer a Reply. Also see Comment by J. Horowitz and C. Jarzynski The authors of the Letter offer a Reply.
Electronic Hybridization of Large-Area Stacked Graphene Films
2013-01-01
Roth , S.; et al. Raman Spectrum of Graphene and Graphene Layers. Phys. Rev. Lett. 2006, 97, 187401. 25. Yang, L.; Deslippe, J.; Park, C.-H.; Cohen, M. L...Y.; Wu, Y.; Lui, C. H.; Misewich, J. A.; Heinz , T. F. Measurement of the Optical Conductivity of Graphene. Phys. Rev. Lett. 2008, 101, 196405. 27
Reconstruction of new holographic scalar field models of dark energy in Brans-Dicke Universe
Yang, Weiqiang; Song, Limin; Su, Yangyang; Li, Jian; Zhang, Dandan; Wang, Xiaogang
2013-01-01
Motivated by the work [K. Karami, J. Fehri, {{\\it Phys. Lett. B}} {\\bf 684}, 61 (2010)] and [A. Sheykhi, {{\\it Phys. Lett. B}} {\\bf 681}, 205 (2009)], we generalize their work to the new holographic dark energy model with $\\rho_D=\\frac{3\\phi^2}{4\\omega}(\\mu H^2+\
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Imaging Under Extreme Conditions
2015-07-28
Science, Nature, JACS, JPC , ChemPhysChem, PNAS, Nano Lett., and Angewandte Chemie. The applications of 4D UEM (and diffraction) are numerous, and we...Caltech were reported in Science, Nature, JACS, JPC , ChemPhysChem, PNAS, Nano Lett., and Angewandte Chemie. The applications of 4D UEM (and diffraction
Scaling and universality of ac conduction in disordered solids
Schrøder, Thomas; Dyre, Jeppe
2000-01-01
Recent scaling results for the ac conductivity of ionic glasses by Roling et al. [Phys. Rev. Lett. 78, 2160 (1997)] and Sidebottom [Phys. Rev. Lett. 82, 3653 (1999)] are discussed. We prove that Sidebottom's version of scaling is completely general. A new approximation to the universal ac...
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Hanson, M.; Johansson, C.; Mørup, Steen
1998-01-01
A Comment on the Letter by J. Tejada et al., Phys. Rev. Lett. 79, 1754 (1997). The authors of the Letter offer a Reply.......A Comment on the Letter by J. Tejada et al., Phys. Rev. Lett. 79, 1754 (1997). The authors of the Letter offer a Reply....
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1996-01-01
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1994-01-01
A reply to the comment by Jané Kondev and Christopher L. Henley, Conformal Charge and Exact Exponents in the n=2 Fully Packed Loop Model, Phys. Rev. Lett. 73, 2786 (1994) on Original: H. W. Blöte and B. Nienhuis, Fully packed loop model on the honeycomb lattice, Phys. Rev. Lett. 72, 1372 (1994)
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2012-01-01
In this paper, we describe the way to set up the floppy-box Monte Carlo (FBMC) method [L. Filion, M. Marechal, B. van Oorschot, D. Pelt, F. Smallenburg, and M. Dijkstra, Phys. Rev. Lett. 103, 188302 (2009)10.1103/PhysRevLett.103.188302] to predict crystal-structure candidates for colloidal particles
Multi-stack InAs/InGaAs Sub-monolayer Quantum Dots Infrared Photodetectors
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Comment on ``Theoretical Description of Carrier Mediated Magnetism in Cobalt Doped ZnO''
Sanvito, Stefano; Pemmaraju, Chaitanya Das
2009-04-01
A Comment on the Letter by Aron Walsh, Juarez L. F. Da Silva, and Su-Huai Wei, Phys. Rev. Lett.PRLTAO0031-9007 100, 256401 (2008)10.1103/PhysRevLett.100.256401. The authors of the Letter offer a Reply.
Comment on ``Violation of the Zeroth Law of Thermodynamics in Systems with Negative Specific Heat''
Michaelian, K.; Santamaría-Holek, I.; Pérez-Madrid, A.
2009-04-01
A Comment on the Letter by A. Ramírez-Hernández, H. Larralde, and F. Leyvraz, Phys. Rev. Lett.PRLTAO0031-9007 100, 120601 (2008)10.1103/PhysRevLett.100.120601. The authors of the Letter offer a Reply.
Solving the liar detection problem using the four-qubit singlet state
Cabello, A
2003-01-01
A method for solving the Byzantine generals problem [M. Fitzi, N. Gisin, and U. Maurer, Phys. Rev. Lett. 87, 217901 (2001)] and the liar detection problem [A. Cabello, Phys. Rev. Lett. 89, 100402 (2002)] is introduced. The main advantage of this proposal is that it is based on the four-qubit singlet state recently obtained experimentally by Weinfurter's group.
Cabello, A
2003-01-01
It is shown that Marinatto's claim [Phys. Rev. Lett. 90, 258901 (2003)] that the proof of "Bell's theorem without inequalities and without probabilities for two observers" [A. Cabello, Phys. Rev. Lett. 86, 1911 (2001)] requires four spacelike separated observers rather than two is unjustified.
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1996-05-01
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Characterization of high-dimensional entangled systems via mutually unbiased measurements
Giovannini, D
2013-04-01
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2007-07-09
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Applying the relativistic quantization condition to a three-particle bound state in a periodic box
Hansen, Maxwell T.; Sharpe, Stephen R.
2017-02-01
Using our recently developed relativistic three-particle quantization condition [Phys. Rev. D 90, 116003 (2014), 10.1103/PhysRevD.90.116003; Phys. Rev. D 92, 114509 (2015), 10.1103/PhysRevD.92.114509], we study the finite-volume energy shift of a spin-zero three-particle bound state. We reproduce the result obtained using nonrelativistic quantum mechanics by Meißner et al. in [Phys. Rev. Lett. 114, 091602 (2015), 10.1103/PhysRevLett.114.091602] and generalize the result to a moving frame.
Preface: phys. stat. sol (a) 203/9
Duewski, P.; Bristowe, P.; Maurice, J.-L.; Komninou, P.
2006-07-01
This special issue contains a selection of papers that were presented at a symposium on Interfacial Processes and Properties of Advanced Materials (IPAM05) held at the E-MRS Fall Meeting, Warsaw, Poland on 5-7 September 2005. The symposium was conceived and inspired by the success of its predecessor (IPAM04) held at the University of Caen, France in June 2004.The symposium attracted over sixty contributions and was organized around five areas: Interfaces and dislocations in compound semiconductors, Gate oxide interfaces, Interfaces and defects in electroceramics, Metal-metal interfaces and interfacial modeling, and Interfaces in nano-structured and amorphous thin-film systems. The focus was on the influence of buried interfaces on the functionality of various electronic and opto-electronic devices such as lasers, ferroelectric memories, CMOS and magnetic disks. Therefore the materials addressed at the symposium included compound semiconductors (e.g. GaN, CdTe, ZnO), perovskites (e.g. SrTiO3), dielectrics (e.g. HfO2, SiO2, Al2O3), and metals (e.g. Fe/V superlattices). The aim of the symposium was to bring together leading interface experts, both experimental and theoretical, to explore the connection between interfacial properties (atomic and electronic structure, segregation, diffusion, kinetics) and materials performance in a device application. Papers were presented that described the use of a variety of sophisticated experimental techniques to explore the interfacial properties including HRTEM, X-ray high-resolution diffraction, Raman spectroscopy, STM, AFM, PL spectroscopy, SIMS and electrical and magnetic measurements. The theoretical work included applications of density functional theory, atomistic simulations, dislocation theory and finite element modeling. The program stimulated many exciting and productive discussions between experimentalists and theorists. The ultimate objective was to improve our knowledge of the role of interfaces on the properties of current and emerging device materials. It is hoped that these proceedings represent a step towards that goal and will encourage further conferences in this area in the future.The organisers gratefully acknowledge funding from the US Office of Naval Research Global (ONRG) Conference Support Program. They also would like to thank E-MRS for their administrative support and the Institute of Physics, Polish Academy of Sciences and the Warsaw University of Technology for hosting the symposium.
Preface: phys. stat. sol. (b) 242/9
Sánchez, Maria
2005-07-01
The XVII Latin American Symposium on Solid State Physics took place in the conference rooms of the Convent San Francisco de Asis, in the heart of the Old Havana. The sixteen previous editions were organized in eight different countries; the last two were in Colombia (Cartagena, 1999) and Venezuela (Merida, 2002). After eighteen years the meeting came back to Havana in 2004.The program topics included: Surfaces and interfaces analysis; Spintronics; Magnetism; Materials and energy; Ab-initio methods, simulations and modeling in solids; Nanophysics, nanomaterials and nanotechnology; New materials, properties and applications; Preparation of materials, thin films and characterization; High temperature superconductivity; Techniques of structural analysis in solids. The program included 6 plenary talks, 13 invited talks, 58 oral presentations (in eight sessions) and 200 poster contributions (in four poster sessions).The meeting attracted more than 200 participants from 14 countries. The physica status solidi Young Researcher Award sponsored by Wiley-VCH was conferred at the meeting. This prize was divided between two participants: Clara Calderón (Study of electrical transport properties of ZnO thin films used as front contact of solar cells) from Colombia and Aim?? Pelaiz Barranco (AC behavior in lanthanum modified PZT ferroelectric ceramics) from Cuba. Special Mentions went to Val??rie Halté (Femtosec-ond dynamics of transmission of gold arrays of sub-wavelength holes) from France, Erick Larramendi Cancio (Cd desorption induced by Zn exposure during atomic layer epitaxy of CdxZn1-xTe) and Julio Cesar Rimada Herrera (Quantum and conversion efficiency calculation of AlGaAs/GaAs multiple quantum well solar cells) from Cuba.Nanostructures and in general low dimensional physics related to different systems was a very hot topic during the meeting. Some talks and presentations were devoted to optoelectronic materials and devices. Characterization of solids by different structural and optical techniques together with modeling and simulations were also important subjects of the symposium.The XVIII Symposium will be held in Mexico in 2006.The editors wish to thank all the participants who contributed to the success of the meeting and hope that it helped to develop close links between researchers and institutions of Latin America.
Preface: phys. stat. sol. (b) 243/5
Artacho, Emilio; Beck, Thomas L.; Hernández, Eduardo
Between 20 and 24 June 2005 the Centre Européen de Calcul Atomique et Moléculaire - or CECAM, as it is more widely known - hosted a workshop entitled State-of-the-art, developments and perspectives of real-space electronic structure methods in condensed-matter and chemical physics, organized with the support of CECAM itself and the ?k network. The workshop was attended by some forty participants coming from fifteen countries, and about thirty presentations were given. The workshop provided a lively forum for the discussion of recent methodological developments in electronic structure calculations, ranging from linear-scaling methods, mesh techniques, time-dependent density functional methods, and a long etcetera, which had been our ultimate objective when undertaking its organization.The first-principles simulation of solids, liquids and complex matter in general has jumped in the last few years from the relatively confined niches in condensed matter and materials physics and in quantum chemistry, to cover most of the sciences, including nano, bio, geo, environmental sciences and engineering. This effect has been propitiated by the ability of simulation techniques to deal with an ever larger degree of complexity. Although this is partially to be attributed to the steady increase in computer power, the main factor behind this change has been the coming of age of the main theoretical framework for most of the simulations performed today, together with an extremely active development of the basic algorithms for its computer implementation. It is this latter aspect that is the topic of this special issue of physica status solidi.There is a relentless effort in the scientific community seeking to achieve not only higher accuracy, but also more efficient, cost-effective and if possible simpler computational methods in electronic structure calculations [1]. From the early 1990s onwards there has been a keen interest in the computational condensed matter and chemical physics communities in methods that had the potential to overcome the unfavourable scaling of the computational cost with the system size, implicit in the momentum-space formalism familiar to solid-state physicists and the quantum chemistry approaches more common in chemical physics and physical chemistry. This interest was sparkled by the famous paper in which Weitao Yang [2] introduced the Divide and Conquer method. Soon afterwards several practical schemes aiming to achieve linear-scaling calculations, by exploiting what Walter Kohn called most aptly the near-sightedness of quantum mechanics [3], were proposed and explored (for a review on linear-scaling methods, see [4]). This search for novel, more efficient and better scaling algorithms proved to be fruitful in more than one way. Not only was it the start of several packages which are well-known today (such as Siesta, Conquest, etc.), but it also leads to new ways of representing electronic states and orbitals, such as grids [5, 6], wavelets [7], finite elements, etc. Also, the drive to exploit near-sightedness attracted computational solid state physicists to the type of atomic-like basis functions traditionally used in the quantum chemistry community. At the same time computational chemists learnt about plane waves and density functional theory, and thus a fruitful dialogue was started between two communities that hitherto had not had much contact.Another interesting development that has begun to take place over the last decade or so is the convergence of several branches of science, notably physics, chemistry and biology, at the nanoscale. Experimentalists in all these different fields are now performing highly sophisticated measurements on systems of nanometer size, the kind of systems that us theoreticians can address with our computational methods, and this convergence of experiment and theory at this scale has also been very fruitful, particularly in the fields of electronic transport and STM image simulation. It is now quite common to find papers at the cutting edge of nanoscience and nanotechnology co-authored by experimentalists and theorists, and it can only be expected that this fruitful interplay between theory and experiment will increase in the future.It was considerations such as these that moved us to propose to CECAM and ?k the celebration of a workshop devoted to the discussion of recent developments in electronic structure techniques, a proposal that was enthusiastically received, not just by CECAM and ?k, but also by our invited speakers and participants. Interest in novel electronic structure methods is now as high as ever, and we are therefore very happy that physica status solidi has given us the opportunity to devote a special issue to the topics covered in the workshop. This special issue of physica status solidi gathers invited contributions from several attendants to the workshop, contributions that are representative of the range of topics and issues discussed then, including progress in linear scaling methods, electronic transport, simulation of STM images, time-dependent DFT methods, etc. It rests for us to thank all the contributors to this special issue for their efforts, CECAM and ?k for funding the workshop, physica status solidi for agreeing to devote this special issue to the workshop, and last but not least Emmanuelle and Emilie, the CECAM secretaries, for their invaluable practical help in putting this workshop together
Preface: phys. stat. sol. (a) 203/4
Kittler, Martin; Yang, Deren
2006-03-01
This issue of physica status solidi (a) contains the majority of papers presented at the 2nd Sino-German Symposium The Silicon Age which was held at the Lindner Hotel Cottbus, Germany, 19-24 September 2005. This meeting followed the 1st Symposium Progress in Silicon Materials held in June 2002 in Hangzhou, P.R. China. 8 Chinese and 14 German scientists from universities, research institutes and industry were invited to present their views about different aspects of silicon.There was a continuous progress in silicon materials development during the last 40-50 years, driven by the need of the IC industry for better and larger monocrystalline silicon wafers. Moreover, low-cost crystalline silicon now dominates the world's production of solar cells in the photovoltaics industry. Furthermore, there are intensive research activities worldwide for on-chip integration of Si-based photonics in CMOS technology. In addition, new areas being connected with silicon are starting to appear, namely Si-based biochips and nanoelectronics. Silicon, one can reasonably argue, is already the most investigated of all materials. However, there is still a need for continuation of research and development regarding numerous aspects of Si and also SiGe, including related technologies, advanced diagnostics or the role of crystal defects, which are the working fields of many laboratories all over the world. This was also shown by the presentations at the symposium and can be found in the contributions contained in this issue.The organizers would like to thank the participants for their high level contributions and discussions during the symposium. This intensive and open communication allowed the participants to create synergies between the different fields of silicon research and also to build up relationships for cooperation between Chinese and German research groups.Finally, we would like to thank the Sino-German Science Center for the financial support of the symposium.
Preface: phys. stat. sol. (a) 202/7
Pollak, Fred H.; Misiewicz, Jan; Sitarek, Piotr
2005-05-01
We have recently observed a growing interest in using the powerful technique of optical modulation spectroscopy. These applications are related mostly to the characterization of low dimensional semiconductor structures and devices based on them.The International Workshop on Modulation Spectroscopy of Semiconductor Structures (MS3) at the beginning of July 2004 gathered in Wrocaw (in the southwest part of Poland) almost 40 participants, half of them from abroad. The 8 invited and 16 contributed talks were presented by the leaders of research teams from the USA, Japan, Taiwan, Canada, Germany, France, the Netherlands, Sweden, Ireland, Russia, Lithuania and Poland. Part of the MS3 workshop was held at the Laboratory of Advanced Optical Spectroscopy, Institute of Physics, Wrocaw University of Technology, where discussions on technical matter of the modulation spectroscopy were carried out in a relaxing atmosphere over a cup of coffee.The topics of the MS3 workshop included: advantages of photoreflectance, electroreflectance, contactless electroreflectance, thermoreflectance, differential reflectance and wavelength-modulated surface photovoltage spectroscopy. The applications of the above methods to investigate transistor, diode and laser structures including VCSELs, low dimensional structures of both wings of the spectrum, i.e. wide band gap materials like GaN, AlGaN, ZnO and low band gap materials such as GaInN(Sb)As, InAs, InSb, and FeSi2 were demonstrated.It is our great pleasure to publish the most interesting of the MS3 workshop presentations in this issue of physica status solidi (a).The organizers acknowledge Wrocaw University of Technology, the Center of Exellence CEPHONA from the Institute of Electron Technology in Warsaw and the Polish Committee for Scientific Research for financial support of the workshop.
Preface: phys. stat. sol. (a) 201/11
Bergonzo, Philippe; Haenen, Ken; Nebel, Christoph; Nesládek, Milo; Vanek, Milan
2004-09-01
The present issue of physica status solidi (a) contains a collection of 24 papers presented at the 9th International Workshop on Surface and Bulk Defects in CVD Diamond Films held in Diepen- beek-Hasselt, Belgium, 18-20 February 2004. The concept of this workshop originated in 1996 with the idea of bringing together scientists who are active and innovative in the field of electronic and optical properties of thin film diamond. Since then, this meeting have grown up to a regular conference devoted to new issues in CVD diamond research and related to diamond as a material for electronics and nanobioelectronics. This year the programme was spread over two and a half days, including 8 invited lectures from a total of 39 talks, and a poster session featuring 15 posters. In addition we were able to connect this meeting with a workshop on Defects and Impurities in Crystalline Boron Nitride Compounds, scientifically organized from the University of Antwerp and leading finally to a joint meeting lasting four days. The papers from the BN workshop are joining this proceeding issue on pages 2559-2598.At SBDD IX, topics ranged from homo- and heteroepitaxial growth, doping, hydrogen induced surface conductivity, defects and their characterization, to devices including bio-sensing applications. As usual, very intense and lively discussions took place among participants, from young students to established scientists, after talks, during breaks and in the evenings while enjoying the hospitality of the Limburgs Universitair Centrum and especially the city of Hasselt. The number of participants reached a record breaking 96 this year, with participants coming from fifteen different countries (Australia, Austria, Belgium, Czech Republic, France, Germany, Israel, Italy, Japan, Mexico, Romania, Russia, Sweden, UK, USA). This yearly increasing number indicates that this workshop is continuing to be very attractive to a large scientific community, as it summarizes the up-to-date research on diamond as a wide band gap semiconductor.The workshop would have not been possible without the support of many people and institutions. For financial aid we are especially indebted to the Scientific Research Community Surface Modification of Materials of the F. W. O.-Vlaanderen (Belgium) and its continuous support since starting this workshop 9 years ago. We also thank the Limburgs Universitair Centrum for offering the lecture hall and infrastructure facilities. Finally we highly appreciate the active approach of the editorial staff of physica status solidi in this conference and would like to thank most notably Stefan Hildebrandt and Katharina Fröhlich, for their excellent and patient work, making this already the sixth successfully published proceedings of SBDD in pss (a).To finish, we would all like to invite you for the 10th anniversary of the SBDD series in February 2005 in Diepenbeek-Hasselt and we look forward to seeing you at:Surface and Bulk Defects in CVD Diamond Films, X23-25 February 2005Limburgs Universitair Centrum, Diepenbeek - Hasselt, Belgiumhttp://www.imo.luc.ac.be/SBDD2005
Preface: phys. stat. sol. (a) 203/12
Jackman, Richard B.; Nesládek, Milo; Haenen, Ken
2006-09-01
The 30 papers gathered in this issue of physica status solidi (a) give a thorough overview over different topics that were presented during the 11th edition of the International Workshop on Surface and Bulk Defects in CVD Diamond Films (SBDD), which took place from 22 to 24 February 2006, at the Hasselt University in Diepenbeek-Hasselt, Belgium. Since its start more than 10 years ago, the SBDD Workshop has grown into a well-established, yearly early bird meeting place, addressing new emerging science related to the progress in the CVD diamond field. The 10 invited lectures, 29 contributed oral presentations and 26 posters were presented in several sessions during an intense two and a half day long meeting.The number of participants reached 115 this year with participants coming from fifteen countries: Austria, Belgium, Czech Republic, France, Germany, Israel, Italy, Japan, Mexico, Poland, Russia, Singapore, Slovak Republic, Sweden, UK, and USA. The mixture of young and established scientists, including a great proportion of students, made this meeting a hot spot of lively discussions on a wide range of scientific subjects, not only during the meeting itself, but also at several occasions throughout many social events offered by the hospitality of the city of Hasselt.It stands for itself that the workshop would not have been possible without the support of many people and institutions. For financial aid we are especially indebted to the Scientific Research Community Surface Modification of Materials of the F.W.O.-Vlaanderen (Belgium), whose incessant support plays an important role in keeping this meeting going. We also thank the Hasselt University for offering the lecture hall and infrastructure facilities and Seki Technotron Corp. for sponsoring the poster reception and their presence with a table top exhibit. Finally we highly appreciate the active approach of the editorial staff of physica status solidi in this conference and would like to thank most notably Stefan Hildebrandt, Ron Schulz-Rheinländer, Christoph Lellig, and Julia Hübner, for their excellent and patient work, bringing the number of successfully published proceedings of SBDD in pss (a) up to 8 already!To finish, we would all like to invite you to the 12th edition of the SBDD series, newly renamed as Hasselt Diamond Workshop, to be held at its established location of Diepenbeek-Hasselt. We look forward meeting you again at SBDD XII in 2007:Hasselt Diamond Workshop - SBDD XII28 February-2 March 2007Hasselt University, Diepenbeek-Hasselt, Belgiumhttp://www.imo.uhasselt.be/SBDD2007London, Paris, Hasselt, August 2006
Preface: phys. stat. sol. (c) 1/10
Suh, Eun-Kyung; Yoon, Euijoon; Lee, Hyung Jae
2004-09-01
The Fifth International Symposium on Blue Laser and Light Emitting Diodes (ISBLLED-2004) was held in Gyeongju, Korea from 15-19 March 2004. Gyeongju, the ancient capital of the thousand-year Silla kingdom (57 B.C. to 935 A.D.) provided additional pleasure to the participants as an exceptional open-air museum with antique treasures scattered all around the city.During the last decade we have witnessed remarkable developments in wide-gap semiconductors and light emitting devices in the spectral range from the visible to deep UV. The purpose of the Symposium was to provide a forum for intensive discussion on the issues and main progress especially in optoelectronic devices, material growth and characterization, and quantum structures of wide bandgap semiconductors. A total of 243 papers including 220 contributed and 23 invited ones were presented and discussed by 487 participants from 17 countries world-wide. Among them, 154 manuscripts were submitted and reviewed by the usual evaluation process of physica status solidi. Some were rejected or withdrawn, and finally 139 papers are published in the special issues of physica status solidi (a), (b), and (c). We gratefully acknowledge the referees for their careful review. The papers are grouped into 7 categories. The subheadings and the number of papers in each are as follows: Optoelectronic devices, 43; Growth and characterization, 45; Nano and quantum structures, 21; Contacts, 8; Zinc oxide, 9; Indium nitride and indium rich InGaN, 6; Others, 7. The special session of the Symposium, The LED Highlight, designed partially to meet the challenging targets of the technology, i.e., energy savings and clean environment preservation, drew much attention and is edited as a special coloured section in this issue.The next symposium is scheduled for Montpellier, France, in 2006. We wish the organizers of that symposium the best of luck and hope to see all of the ISBLLED-2004 participants again at ISBLLED-2006.ISBLLED-2004 was sponsored by The Research Society for the Wide-gap Semiconductors, Korean Physical Society, Office of Naval Research, Korea Science and Engineering Foundation, Korea Research Foundation, Korea Association for Photonics Industry Development, Asian Office of Aerospace Research and Development, and Korea Photonics Technology Institute. We would like to thank Ms. E. S. Hwang for her devotion to the preparation and the Proceedings of the symposium including the manuscript handling for publication.
Editorial: phys. stat. sol. (b) 241/5
Stutzmann, Martin
2004-04-01
Physica status solidi was founded in 1961 by a number of eminent solid state physicists as an attempt to overcome the iron curtain, which then separated East and West, at least in the field of science. Since that time our world has changed quite a bit, and so have the boundary conditions of science publishing. However, one thing has not changed: then as now, the general policy and development of a respectable scientific journal should be determined by a board of independent scientists, who volunteer to assume responsibility for the scientific content of the journal, to assure a fair and critical peer review process for all submitted manuscripts, and, in cases of conflict, to finally decide which papers will be published and which will not.As a matter of fact, an international Board of Editors which consists of scientists coming from different countries and continents, with a good reputation in their respective community, and without any conflict of interest with the Publisher of the journal is, in my opinion, these days more important than ever. As our daily scientific work becomes increasingly specialized, but at the same time also increasingly interdisciplinary, we are more and more forced to trust the quality and reliability of published scientific results in the literature, without really having a chance to come to an independent opinion on our own. This is one of the reasons why the many recent cases of plagiarism, scientific misconduct, or outright fraud have caused such a high level of public awareness. It is quite clear that without a serious peer review there would be an even larger number of such cases in the literature, and that without the responsible action taken by concerned Journal Editors, many of the revealed cases probably would have remained under the carpet.It is, therefore, a particular pleasure for me to introduce to you on the following pages the current Editorial Board of physica status solidi (b) in the form of a brief curriculum vitae, a photograph, and an e-mail address (in case you want to contact our Editors directly!). Of course, since 1961 the Editorial Board of our journal has undergone many changes and will continue to do so, but we always have attempted to maintain a good balance between the different areas of solid state physics, between theory and experiment, and between different countries. And although nothing is perfect, I hope that you will find at least one or two board members, who are known to you through their contributions to the literature in solid state physics.For me, this is the perfect occasion to thank all Members of the Editorial Board, past and present, for their advice, continuing support, and dedication! Vielen herzlichen Dank!
Editorial: phys. stat. sol. (a) 201/5
Stutzmann, Martin
2004-04-01
Physica status solidi was founded in 1961 by a number of eminent solid state physicists as an attempt to overcome the iron curtain, which then separated East and West, at least in the field of science. Since that time our world has changed quite a bit, and so have the boundary conditions of science publishing. However, one thing has not changed: then as now, the general policy and development of a respectable scientific journal should be determined by a board of independent scientists, who volunteer to assume responsibility for the scientific content of the journal, to assure a fair and critical peer review process for all submitted manuscripts, and, in cases of conflict, to finally decide which papers will be published and which will not.As a matter of fact, an international Board of Editors which consists of scientists coming from different countries and continents, with a good reputation in their respective community, and without any conflict of interest with the Publisher of the journal is, in my opinion, these days more important than ever. As our daily scientific work becomes increasingly specialized, but at the same time also increasingly interdisciplinary, we are more and more forced to trust the quality and reliability of published scientific results in the literature, without really having a chance to come to an independent opinion on our own. This is one of the reasons why the many recent cases of plagiarism, scientific misconduct, or outright fraud have caused such a high level of public awareness. It is quite clear that without a serious peer review there would be an even larger number of such cases in the literature, and that without the responsible action taken by concerned Journal Editors, many of the revealed cases probably would have remained under the carpet.It is, therefore, a particular pleasure for me to introduce to you on the following pages the current Editorial Board of physica status solidi (a) in the form of a brief curriculum vitae, a photograph, and an e-mail address (in case you want to contact our Editors directly!). Of course, since 1961 the Editorial Board of our journal has undergone many changes and will continue to do so, but we always have attempted to maintain a good balance between the different areas of solid state physics, between theory and experiment, and between different countries. And although nothing is perfect, I hope that you will find at least one or two board members, who are known to you through their contributions to the literature in solid state physics.For me, this is the perfect occasion to thank all Members of the Editorial Board, past and present, for their advice, continuing support, and dedication! Vielen herzlichen Dank!
Preface: phys. stat. sol. (c) 1/7
Cheikhrouhou, Abdelwaheb
2004-05-01
The Third International Conference on Magnetic and Superconducting Materials (MSM03) belongs to a series of conferences, held biannually, aiming at providing a forum to the scientists in the magnetic and superconducting materials areas over the world.The first conference of the series (MSM99) was held in Iran with the proceedings published by World Scientific in 2000, and the second conference (MSM01) was held in Jordan with the proceedings published in Physica B 321 (2002).MSM03 was organized by the Materials Physics Laboratory, Sfax University (Laboratoire de Physique des Matériaux de la Faculté des Sciences de Sfax), with many domestic and international supporting institutions. It was held in Monastir (Tunisia), 1-4 September 2003, with over 150 participants and keynote lecturers attending from the following countries: Algeria, Austria, China, Czech Republic, Egypt, France, Germany, Hungary, Iran, Italy, Japan, Jordan, Morocco, Netherlands, Pakistan, Poland, Russia, Spain, Sudan, Sultanate of Oman, Taiwan, Tunisia, United Kingdom and United States of America.Altogether, about 170 papers on a variety of subjects relevant to the topic of the conference were presented, out of which 42 were keynote lectures. The submissions were peer-reviewed, and ultimately 115 articles were selected for publication in this journal. However, it must be noted that 13 of 39 keynote speakers did not submit their manuscripts for publication. Invited and other speakers were distinguished members of the international scientific community who are interested in pure sciences and materials research, and involved in the fabrication, characterization and investigation of the physical properties of magnetic and superconducting materials. High-caliber scientists attended the conference contributing to its success and the event resulted in new international relationships in research and cooperation. The Chairman of the Organizing Committee was Professor Abdelwaheb Cheikhrouhou, Materials Physics Laboratory, Sciences Faculty of Sfax (Tunisia) and the Co-Chairmen were Professor Sami Mahmood, Dean of Sciences at Yarmouk University (Jordan) and Professor Mohamed Akhavan from the Sharif University of Technology (Iran). The four-day conference consisted of several oral and poster sessions, followed by social programs in the evenings. The success of the event could be measured during the closing session on the last day, when several delegates emphasized the high-quality science that had been evident at the conference. A post conference three-day tour to the south of Tunisia (Matmata, Douz City: the gate of desert and the mountains oasis: Tamerza, Mides and Chebika) was also arranged. The conference was generously sponsored by: - The Tunisian Ministry of High Education, Scientific Research and Technology - The Tunisian Secretary of State for Scientific Research and Technology - The Tunisian National Office of Tourism - The Abdus Salam International Centre for Theoretical Physics (ICTP) - French Institute for Cooperation in Tunisia - Tunisian-Italian Scientific Partnership - British Gas - Tunisian Society for Electricity and Gas - Imex Olive Oil -Confiserie TRIKI Le Moulin The next MSM conference in 2005 will be held in Morocco.
75 FR 23729 - Orders Finding that the (1) Phys,1
2010-05-04
.... ACTION: Final orders. SUMMARY: On October 20, 2009, the Commodity Futures Trading Commission (``CFTC'' or... to the price of a contract or contracts listed for trading on or subject to the rules of a DCM or..., although the Alberta Hub is a major trading center for natural gas and, as noted, NGX provides price...
Preface: phys. stat. sol. (b) 241/9
Morawetz, Klaus
2004-07-01
Modelling and Simulation in Molecular Systems, Mesoscopic Structures, and Material Science was the title of a workshop held at the University of Technology in Chemnitz from 21 to 23 April 2004. This workshop coincided with the 50th birthday of Michael Schreiber. Therefore, the idea to publish a special issue is supported by two good reasons. First, a topical collection is appropriate for giving an overview about a field and to initiate further studies. This is one intention of the present issue. Second, the birthday is a suitable occasion for reflecting on the status of the different fields where Michael Schreiber has been active himself. Motivated by the characteristic name of the workshop (MS4), which expresses the broad range of his activities, the contributions are grouped into three main chapters: Disorder and Interaction, Phase Transitions and Criticality, and Transport Properties.The first part starts with the currently intensively discussed topic of composite Fermions in the paper by B. Kramer et al. This method of rewriting correlations as new quasiparticles has amongst other things the merit of explaining such exciting phenomena as the fractional quantum Hall effect. The methodological questions of Ward identities, causality, and conservation laws are the focus of the systematic investiga-tion in the second article by V. Janis et al. which concentrates on the problem of disorder and configura-tional averaging. The interplay between disorder and correlation is treated in the third contribution by C. Schuster et al., where different theoretical methods are tested on the problem of Friedel oscillations within the one-dimensional Heisenberg and Hubbard model. In the next contribution, M. Berciu et al. focus on localization as one consequence of disorder. The localized and extended electronic states are treated, together with the magnetic degrees of freedom, like spin waves. One of the astonishing consequence of localiza-tion is the observation of resonant Rayleigh backscattering. This is investigated by random matrix theory in the next article by E. Runge et al. and extended to exciton transitions in semiconductor nanostructures. In order to characterize localization, A. Eilmes et al. consider the two-dimensional Anderson model in the following article with special focus on the critical exponents for the localization length. The chapter on disorder ends with a contribution by A. Aldea et al. where the disorder effects are investigated in twodimensional systems with perpendicular magnetic fields such that the interplay between Landau levels and localized states can be considered.The second chapter in the collection is devoted to critical phenomena and phase transitions. It starts with an overview of the most prominent example of critical phenomena, high-Tc superconductivity. A. Sherman presents a review on magnetic and spectral properties of cuprate perovskites within t - J models. The long-range hopping problem and the extraction of critical exponents are the topic of the contribution by E. Cuevas, who calculated the level spacing distribution as well as the correlation dimen-sion in the strong coupling limit. The critical points and the thermodynamics of quenched spatial disordered systems are then treated by T. Vojta et al. Here it is shown that different parts of a system might undergo phase transitions controlled by different parameter values. Different microstructures are important when phenomena like the growth of crystals are considered. Consequently the latter problem is treated in the next contribution by H. Emmrich et al., who develop an analytical solution and compare it to simulations in order to provide insights into the universality of diffusion-limited crystal growth. That the applications of critical phenomena are quite versatile is demonstrated in a short paper by J. Stäring et al. who show how statistical methods can be employed to optimize networks of wireless communication. This chapter on critical phenomena ends with a methodological investigation by U. Grimm. This concerns the often applied random matrix theory, and a method to calculate the level spacing distribution by using coupled differential equations.The third chapter is devoted to transport. It starts with an article about conductance fluctuations by M. Ortuno et al. These quantum fluctuations are considered in localized systems which is directly related to the topics in the first chapter. M. Schröder et al. present in the next article a method to propagate wave functions by approximating them by multi-dimensional wave packets. In contrast to variational methods, this method is based on stochastic calculus. In the case where only a few electrons are transferred, as in the reaction of donor-acceptor complexes and molecular wires, a unified description is presented in the contribution by V. May et al. The transfer rate and the stationary current are calculated and their depend-ence on the length of the molecular system is shown. The method of Green's functions based on local orbitals is used in the next article by M. Albrecht et al. to calculate molecular charge transport. This results into a Landauer theory for the calculation of the transmission coefficient. The special role of elec-tron-electron interaction in the transport properties of disordered wires is considered by H. Mori et al. Here the interplay of interaction and disorder is investigated and the different roles of interaction for the localization phenomena are discussed. We close this chapter on transport by an investigation of electronic transport through nanoparticle arrays. The self-assembled nanoparticle structures are considered within the contri-bution by K. Nicolic whose structures represent very promising nanoelectronic devices.The broad-range approaches and applications selected in these three chapters demonstrate the exciting interplay between structure, disorder, and correlations and suggest the kind of future developments which are to be expected within this field. Finally, in the name of all authors and workshop participants: Happy birthday to Michael Schreiber and all best wishes for exciting future scientific activities!
Reengineering PhysNet in the uPortal framework
2003-01-01
A Digital Library (DL) is an electronic information storage system focused on meeting the information seeking needs of its constituents. As modern DLs often stay in synchronization with the latest progress of technologies in all fields, interoperability among DLs is often hard to achieve. With the advent of the Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH) and Open Digital Libraries (ODL), lightweight protocols show a promising future in promoting DL interoperabilit...
1992-01-01
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InP Transferred Electron Cathodes: Basic to Manufacturing Methods
2007-08-29
4 R. Sankaran et al, J. Vac. Sci. Technol. 13, 932 (1976) 5 J. S. Escher , IEEE Trans. Elec. Dev. 27, 1244 (1980) 6 R. L. Bell et al, Appl. Phys...Lett. 19, 513 (1971) 7 J. S. Escher et al, J. Appl. Phys. 49, 2591 (1978) 15 8 R. L. Bell, L. W. James, R. L. Moon, Appl. Phys. Lett. 25, 645 (1974...9 J. S. Escher , R. Sankaran, Appl. Phys. Lett. 29, 87 (1976) 10 J. S. Escher et al, CRC Crit. Rev. Solid State Sci. 5, 577 (1975) 11 R. L. Bell, W
Centro de distribución en D-coesfeld-lette (Suiza
Calatrava, Santiago
1985-12-01
Full Text Available A building for a Distribution Center of merchandise, located in a small industrial spot, is described. The building carries out several tasks as storage (floor level, distribution it has been used aluminum and concrete for the façade and a typical brick of the place for the offices setting.Se describe un edificio para centro de distribución de mercancías situado en una pequeña zona industrial. En él se realizan las tareas de almacenamiento (planta baja, distribución de mercancías (piso superior y transporte, mediante teleféricos de dichas mercancías. En su construcción se ha empleado el aluminio y el hormigón para la fachada y un ladrillo típico de la región para la zona de oficinas.
Centro de distribución en D-coesfeld-lette (Suiza)
Calatrava, Santiago; Reichlin, Bruno; Reinhard, Fabio
1985-01-01
A building for a Distribution Center of merchandise, located in a small industrial spot, is described. The building carries out several tasks as storage (floor level), distribution it has been used aluminum and concrete for the façade and a typical brick of the place for the offices setting.Se describe un edificio para centro de distribución de mercancías situado en una pequeña zona industrial. En él se realizan las tareas de almacenamiento (planta baja), distribución de mercancía...
Spin g -factor due to electronic interactions in graphene
Menezes, Natália; Alves, Van Sérgio; Marino, E. C.; Nascimento, Leonardo; Nascimento, Leandro O.; Morais Smith, C.
2017-06-01
The gyromagnetic factor is an important physical quantity relating the magnetic-dipole moment of a particle to its spin. The electron spin g -factor in vacuo is one of the best model-based theoretical predictions ever made, showing agreement with the measured value up to ten parts per trillion [J. Schwinger, Phys. Rev. 73, 416 (1948), 10.1103/PhysRev.73.416; R. S. Van Dyck, Jr. et al., Phys. Rev. Lett. 59, 26 (1987), 10.1103/PhysRevLett.59.26; D. Hanneke et al., Phys. Rev. Lett. 100, 120801 (2008), 10.1103/PhysRevLett.100.120801; T. Aoyama et al., Phys. Rev. Lett. 109, 111807 (2012), 10.1103/PhysRevLett.109.111807]. However, for electrons in a material the g -factor is modified with respect to its value in vacuo because of environment interactions. Here, we show how interaction effects lead to the spin g -factor correction in graphene by considering the full electromagnetic interaction in the framework of pseudo-QED [A. Kovner et al., Phys. Rev. B 42, 4748 (1990), 10.1103/PhysRevB.42.4748; N. Dorey et al., Nucl. Phys. B 386, 614 (1992), 10.1016/0550-3213(92)90632-L; S. Teber, Phys. Rev. D 86, 025005 (2012), 10.1103/PhysRevD.86.025005; S. Teber, Phys. Rev. D 89, 067702 (2014), 10.1103/PhysRevD.89.067702; E. C. Marino, Nucl. Phys. B 408, 551 (1993), 10.1016/0550-3213(93)90379-4]. We compare our theoretical prediction with experiments performed on graphene deposited on SiO2 and SiC, and we find a very good agreement between them.
The Effects of Stoichiometry on the Mechanical Properties of Icosahedral Boron Carbide Under Loading
2012-11-19
failing to comply with a collection of information if it does not display a currently valid OMB control number. 1. REPORT DATE 19 NOV 2012 2. REPORT...32] with temperature and pressure controlled using algorithms due to Berendsen [33]. For each MD trajectory, atomic forces and stresses were computed...Phys. Rev. Lett. 77 3865 [29] Doll K 2009 Mol. Phys. 108 223 [30] Wang J and Yip S 1993 Phys. Rev. Lett. 71 4182 [31] Kimizuka H, Ogata S, Li J and
Electron Paramagnetic Resonance Saturation Characteristics of Pristine and Doped Polyacetylenes.
1981-11-11
42, 1693 5. M.J. Rice, Phys. Letts. 71A, 152 (1979). 6. B.R. Weinberger, J. Kaufer , A.J. Heeger, A. Pron and A.G. MacDiarmid, Phys. Rev. B 20, 223...1979). 7. S. Ikehata, J. Kaufer . T. Woerner, A. Pron, M.A. Druy, A. Sivak, A.J. Heeger and A.G. Mac~iarmid, Phys. Rev. Lett. 45, 1123 (1980). 8. Y.W
Comment on "Spatial Coherence and Optical Beam Shifts"
Wang, Li-Gang; Zubairy, M Suhail
2013-01-01
This comment is to show that our simulation data, based on our theory and method in Ref. [J. Phys. B 41, 055401 (2008)], are also in agreement with the experimental data presented for $D_{p}-D_{s}$ in Ref. [Phys. Rev. Lett. \\textbf{109}, 213901 (2012)]. We also demonstrate how to show the effect of spatial coherence on the GH shifts in this comment, therefore we disagree with the claims in Ref. [Phys. Rev. Lett. \\textbf{109}, 213901 (2012)].
Quantum Coherent Electron-Phonon Nanolaboratories
2006-05-31
published as “Single-crystal aluminum nitride nanomechanical resonators”, A.N. Cleland, M. Pophristic and I. Ferguson , Appl. Phys. Lett. 79, 2070 (2001...nanostructured phononic crystals”, Phys. Rev. B 64, 172301 (2001) A.N. Cleland, M. Pophristic and I. Ferguson , “Single-crystal aluminum nitride...Phys. Lett. 79, 1202 ~2001!. 6 M. J. Kelly, R. J. Brown, C. G. Smith, D. A. Wharam, M. Pepper , H. Ahmed, D. G. Hasko, D. C. Peacock, J. E. F. Frost, and
Moretto, L G; Phair, L; Wozniak, G J
1997-01-01
In a recent preprint by Tsang and Danielewicz, the authors attempt to give alternative or trivial explanations for the reducible and "thermal" nature of the intermediate mass fragment excitation functions reported previously (Phys. Rev. Lett. 74, 1530 (1995), Phys. Lett B 361, 25 (1995), Phys. Rep. 287, 249 (1997)). We demonstrate that their proposed "self-correlation" explanation for linear Arrhenius plots is based upon a flawed autocorrelation analysis involving circular reasoning.
2014-09-26
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Tight-Binding and Hueckel Models of Molecular Clusters
1990-05-01
Chem. Phys. Lett. 163, 323 (1989); Phys. Rev. Lett. 64, 551 (1990). 16. H. Kupka and K. Jug, Chem. Phys. 130, 23 (1989). 17. Y. Wang , T. F. George...D. M. Lindsay and A. C. Beri, J. Chem. Phys. 86, 3493 (1987). 18. D. M. Lindsay, Y. Wang and T. F. George, J. Chem. Phys. 86, 3500 (1987). 23 Table 1...Department of Chemistry Northwestern University University of California Evanston, IL 60208 Irvine, CA 92717 Professor Frank DiSalvo Professor Roald Hoffmann
Hamiltonian theory of the FQHE edge: Collective modes
Nguyen, Hoang; Joglekar, Yogesh; Murthy, Ganpathy
2003-03-01
We study the collective modes of the fractional quantum Hall edge states using the Hamiltonian formalism [1]. While most theoretical approaches start with an effective bosonic theory [2] in which all fermions are integrated out (an exception is the approach based on Chern-Simons theory [3]), the Hamiltonian theory treats the composite fermions as fully interacting. We obtain the gapless edge-modes using a conserving approximation which respects the constraints [4]. The implications of our study to the tunneling experiments into the edge of a fractional quantum Hall system [5] are discussed. [1] R.Shankar and G.Murthy, Phys.Rev.Lett. 79, 4437 (1997). [2] X.-G.Wen, Phys.Rev.Lett. 64, 2206 (1990); D.-H.Lee and X.-G.Wen, cond-mat/9809160; A.Lopez and E.Fradkin, Phys.Rev.B 59, 15323 (1999); U. Zulicke and A.H.MacDonald, Phys.Rev.B 60, 1837 (1999); V.J.Goldman and E.V.Tsiper, Phys.Rev.Lett. 86, 5841 (2001); S.S.Mandal and J.K.Jain, Phys.Rev.Lett. 89, 096801 (2002). [3] L.S.Levitov, A.V.Shytov, and B.I.Halperin, Phys. Rev. B 64, 075322 (2001). [4] N. Read, Phys.Rev.B 58, 16262 (1998); G. Murthy, Phys.Rev.B 64, 195310 (2001). [5] A.M.Chang et.al., Phys.Rev.Lett. 86, 143 (2000).
Laser- and Particle-Beam Chemical Processes on Surfaces. Volume 129
1989-12-26
W. Fraser, .1. L. Garnett and 1. K. Gregor , 1. Chesm. Soc. Chem. Comm. 365 (1974). 5. J. R. Engstrom and W. If. Weinberg, I. (Chem. Phys., 87, 4211...1966). 18. C. W. Mendel and J. N. Olsen, Phys. Rev. Lett. % 859 (1975). 19. N. G. Utterback, S. P. Tang, and J. F. Friichtenicht, Phys. Fluids 1. 900
2007-01-01
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Do Highly Excited Reactive Polyatomic Molecules Behave Ergodically.
1978-10-01
Chein . Phys., 61, 3114 (1974). 38. 14. 1. Hase, Private coninunication . 39. J. H. Parsons, K. Shobatake, V. 1. Lee and S. A. R ice , J. Chem. Phys...1402, 1416 (1973). - - 80. S. A. Safron, N. D. WeInstein, 0. R. Herschbach and 3. C. Tully, Chein . Phys. Lett., 12, 564 (1972). 81. 1. Donohue, 14. S
Quantum Solids of Two Dimensional Electrons in Magnetic Fields
2005-11-01
T. Dorsey, 2005, Phys. Rev. B. 71, 155331. v. Klitzing, K., G. Dorda, and M. Pepper , 1980, Phys. Rev. Lett. 45, 494. Kosterlitz, J. M., and D. J...S. Ferguson , 2000, Phys. Rev. B. 61, 11910. Pfeiffer, L., and K. W. West, 2003, Physica E 20, 57. Ploog, K. H., 1981, Ann. Rev. Mater. Sci. 11, 171
Process tomography via sequential measurements on a single quantum system
Bassa, H
2015-09-01
Full Text Available . Audretsch, T. Konrad, and A. Scherer, Phys. Rev. A 63, 052102 (2001). [15] J. Audretsch, F. Klee, and T. Konrad, Phys. Lett. A 361, 212 (2007). [16] T. Konrad and H. Uys, Phys. Rev. A 85, 012102 (2012). [17] L. Dio´si, T. Konrad, A. Scherer, and J. Audretsch...
Implementation schemes for unsharp measurements with trapped ions
Choudhary, SK
2013-01-01
Full Text Available , Phys. Rev. A 85, 012102 (2012). [10] J. Audretsch, F. Klee, and T. Konrad, Phys. Lett. A 361, 212 (2007). [11] J. F. Ralph, K. Jacobs, and C. D. Hill, Phys. Rev. A 84, 052119 (2011). [12] R. Vijay, C. Macklin, D. Slichter, S. Weber, K. Murch, R. Naik, A...
Theory of Magnetic and Structural Ordering in Iron,
1984-01-01
have the lowest energy in the bcc case while the AFM state is the lowest in the fcc case. . Surprisingly, the latter was calculated by Kubler to lie...N4ew York, 1978). 2. J. Kubler , Phys. Lett. 81A, 81 (1981). I3. 0. K. Andersen, Phys. Rev. B 12, 3060 (1975). D. D. Koelling and G. 0. Arbran, J. Phys
Experimental Evidence of Dipolar Interaction in Bilayer Nanocomposite Magnets
2010-11-25
105, 023912 (2009) 7. D.T. Margulies, M.E. Schabes , W.Mc. Chesney, E.E. Fullerton, Appl. Phys. Lett. 80, 91 (2002) 8. S.S.P. Parkin, D. Mauri, Phys. Rev. B 44, 7131 (1991) 9. S.T. Chui, J. Appl. Phys. 85, 4397 (1999)
Improving Random Number Generators in the Monte Carlo simulations via twisting and combining
Deng, Lih-Yuan; Guo, Rui; Lin, Dennis K. J.; Bai, Fengshan
2008-03-01
Problems for various random number generators accompanying the Wolff algorithm [U. Wolff, Phys. Rev. Lett. 62 (1989) 361; U. Wolff, Phys. Lett. B 228 (1989) 379] are discussed, including the hidden errors first reported in [A.M. Ferrenberg, D.P. Landau, Y.J. Wong, Phys. Rev. Lett. 69 (1992) 3382]. A general (though simple) method of twisting and combining for improving the performance of these generators is proposed. Some recent generators motivated by such a twisting and combining method with extremely long period are discussed. The proposed method provides a novel and simple way to improve RNGs in its performance.
Magnetic Ultrathin Films: Multilayers and Surfaces, Interfaces and Characterization
1993-04-01
Kelly and M.F.H. Schuuirmans, Phys. Res. B42, 7271)(1990). [141 G. Lt, A.J. Freeman. HIJF. Jansen and C.L. Fou, Phys. Rev. B 42, -5433(1990) 257...Phys. Lefts. 53, 1279 (1988). 10. J. K. Furdyna, J. Appl. Phys. L4, 29 (1988). 11. A. L. Elfros and B. Kakanov, J. Exp. Theo . Phys. 96, 218 (1992). i 4...Richter, Phys. Rev. Lett. 56 (1986) 2728; C. Li, A.J. Freeman, H.J.F. Jansen and C.L. Fu, Phys. Rev. B 42 (1990) 5433; R. Richter and J.G. Gay, Mat. Res
Sahai, Aakash A.; Tsung, Frank S.; Tableman, Adam R.; Mori, Warren B.; Katsouleas, Thomas C.
2013-10-01
The relativistically induced transparency acceleration (RITA) scheme of proton and ion acceleration using laser-plasma interactions is introduced, modeled, and compared to the existing schemes. Protons are accelerated with femtosecond relativistic pulses to produce quasimonoenergetic bunches with controllable peak energy. The RITA scheme works by a relativistic laser inducing transparency [Akhiezer and Polovin, Zh. Eksp. Teor. Fiz 30, 915 (1956); Kaw and Dawson, Phys. FluidsPFLDAS0031-917110.1063/1.1692942 13, 472 (1970); Max and Perkins, Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.27.1342 27, 1342 (1971)] to densities higher than the cold-electron critical density, while the background heavy ions are stationary. The rising laser pulse creates a traveling acceleration structure at the relativistic critical density by ponderomotively [Lindl and Kaw, Phys. FluidsPFLDAS0031-917110.1063/1.1693437 14, 371 (1971); Silva , Phys. Rev. E1063-651X10.1103/PhysRevE.59.2273 59, 2273 (1999)] driving a local electron density inflation, creating an electron snowplow and a co-propagating electrostatic potential. The snowplow advances with a velocity determined by the rate of the rise of the laser's intensity envelope and the heavy-ion-plasma density gradient scale length. The rising laser is incrementally rendered transparent to higher densities such that the relativistic-electron plasma frequency is resonant with the laser frequency. In the snowplow frame, trace density protons reflect off the electrostatic potential and get snowplowed, while the heavier background ions are relatively unperturbed. Quasimonoenergetic bunches of velocity equal to twice the snowplow velocity can be obtained and tuned by controlling the snowplow velocity using laser-plasma parameters. An analytical model for the proton energy as a function of laser intensity, rise time, and plasma density gradient is developed and compared to 1D and 2D PIC OSIRIS [Fonseca , Lect. Note Comput. Sci.9783
1988-10-07
Gerdau, R. Ruffer, R. Hollatz, G. V. Smirov and J. P. Hannon, Phys. Rev. Lett 59. 355 (1987). 8.F. X. Hartmann, S. R. Rotman and K. K. Garcia, Phys...Spect. and Rad. Transfer 40, Dec. 1988 (in press). 14. S. R. Rotman and F. X. Hartmnann, Chem. Phys. Letts. 1988 (in press). 15. Y. Y. Sharon, Phys...the case (a) limit, where the spins are coupled to the molecular axis. Omitting the algebraic details here, we state the final result:13 In the case (a
The Status of Rotational Nonequilibrium in HF Chemical Lasers
1986-05-01
later study from the same laboratory, Copeland et al. 5 3 used a NdYAG dye laser to pump HF into v = 2, j, and an HF pulsed laser to probe various P 2(J... Weston , Jr., J. Chem. Phys. 77, 4776 (1982). 51. J. J. Hinchen and R. H. Hobbs, Appl. Phys. 50, 628 (1979). 52. j. K. Lambert, G. M. Jursich, and F. F...Crim, Chem. Phys. Lett. 71, 258 (1980). 53. R. A. Copeland , D. J. Pearson, and F. F. Crim, Chem. Phys. Lett. 81, 541 (1981). 54. T. J. Foster and F. F
Experimental test of state-independent quantum contextuality of an indivisible quantum system
Huang, Yun-Feng; Li, Meng; Cao, Dong-Yang; Zhang, Chao; Zhang, Yong-Sheng; Liu, Bi-Heng; Li, Chuan-Feng; Guo, Guang-Can
2013-05-01
We report a state-independent experimental test of quantum contextuality of a single-photon qutrit. The experimental results demonstrate violations of an inequality originally formulated by Yu and Oh [Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.108.030402 108, 030402 (2012)] and further optimized by Cabello [Phys. Rev. APLRAAN1050-294710.1103/PhysRevA.85.032108 85, 032108 (2012)]; this inequality is satisfied by all noncontextual hidden variable models and is violated by all qutrit states. Our experiment shows quantum contextuality of this nature in a most fundamental way: A way that is independent of state and unrelated to entanglement.
2014-09-26
AppI . Phys. 52, 2549 (1981). 3. S. G. Cornelison, D. J. Sellmyer and G. Hadjipanayis, J. Appl. Phys. 52, 1823 (1981). li * . 4. G. Hadjipanayis, M. Sc...23, 3349 (1981). 9. A. E. Clark, AppI . Phys. Lett. 23, 642 (1973). 10. H. T. Savage, A. E. Clark, S. J. Pickart, J. J. Rhyne and H. A. Alperin, IEEE...Trans. Magn. MAG-lO, 807 (1974). S 11. J.J. Croat, IEEE Trans. Magn. MAG-18, 1442 (1982). 12. N. C. Koon and B. N. Das, Appi . Phys. Lett. 39, 840 (1981
2013-06-17
Phys. Lett. 85, 4962 (2004). 9S. A. Studenikin, M. Potemski, P. T. Coleridge, A. S. Sachrajda, and Z. R. Wasilewski , Solid State Commun. 129, 341 (2004...Phys. Rev. B 74, 075313 (2006). 17R. G. Mani, Appl. Phys. Lett. 91, 132103 (2007). 18S. A. Studenikin, A. S. Sachrajda, J. A. Gupta, Z. R. Wasilewski , O...G. Mani, and W. Wegscheider, Phys. Rev. B 83, 165303 (2011). 27O. M. Fedorych, M. Potemski, S. A. Studenikin, J. A. Gupta, Z. R. Wasilewski , and I. A
Symposium Q: Magnetic Thin Films, Heterostructures, and Device Materials
2007-05-22
priorities from government funding agencies. Marie- Symposium Support: Dipartimento di Fisica , Isabelle Baraton (Universit6 de Limoges, France...using the Panchula, and S. S. P. Parkin, Phys. Rev. Lett. 95, 047202 (2005). molecular beam epitaxy (MBE)[
Lee, Kegan; Kamiya, Keisuke; Nakajima, Masamichi; Miyasaka, Shigeki; Tajima, Setsuko
2017-02-01
A precursor of superconductivity has been searched in the in-plane optical spectra of underdoped YBa2Cu3Oy, in which the previous c-axis optical spectra showed the presence of superconducting carriers at a temperature far above Tc [Uykur et al., https://doi.org/10.1103/PhysRevLett.112.127003" xlink:type="simple">Phys. Rev. Lett. 112, 127003 (2014)][Dubroka et al., https://doi.org/10.1103/PhysRevLett.106.047006" xlink:type="simple">Phys. Rev. Lett. 106, 047006 (2011)]. By carefully subtracting the normal component from the imaginary part of conductivity σ2(ω), we found a clear in-plane response of superconducting condensate at the temperature consistent with the c-axis optical data. This confirms that the precursory superconductivity developing with decreasing doping level is an intrinsic phenomenon in the cuprates.
Wang, Yun-Peng; Cheng, Hai-Ping
2013-06-01
We investigate the currently debated issue of the existence of the Dirac cone in silicene on an Ag(111) surface, using first-principles calculations based on density functional theory to obtain the band structure. By unfolding the band structure in the Brillouin zone of a supercell to that of a primitive cell, followed by projecting onto Ag and silicene subsystems, we demonstrate that the Dirac cone in silicene on Ag(111) is destroyed. Our results clearly indicate that the linear dispersions observed in both angular-resolved photoemission spectroscopy [P. Vogt , Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.108.155501 108, 155501 (2012)] and scanning tunneling spectroscopy [L. Chen , Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.109.056804 109, 056804 (2012)] come from the Ag substrate and not from silicene.
Evidence for an excited-state Efimov trimer in a three-component Fermi gas.
Williams, J R; Hazlett, E L; Huckans, J H; Stites, R W; Zhang, Y; O'Hara, K M
2009-09-25
We observe enhanced three-body recombination in a three-component ;{6}Li Fermi gas attributable to an excited Efimov trimer state intersecting the three-atom scattering threshold near 895 G. From measurements of the recombination rate we determine the Efimov parameters kappa_{*} and eta_{*} for the universal region above 600 G which includes three overlapping Feshbach resonances. The value of kappa_{*} also predicts the locations of loss features previously observed near 130 and 500 G [T. B. Ottenstein, Phys. Rev. Lett. 101, 203202 (2008)10.1103/PhysRevLett.101.203202; J. H. Huckans, Phys. Rev. Lett. 102, 165302 (2009)10.1103/PhysRevLett.102.165302] suggesting they are associated with a ground-state Efimov trimer near threshold. We also report on the realization of a degenerate three-component Fermi gas with approximate SU(3) symmetry.
Relationship Among Solutions of a Generalized Riccati Equation
无
2007-01-01
In this paper, some solutions of a generalized Riccati equation are investigated, which are given in the recent articles [Chaos, Solitons & Fractals 24 (2005) 257; Phys. Lett. A 336 (2005) 463], and the relationship among the solutions is revealed.
CeSi{sub 2} Photoemission Spectra at 5 meV Resolution
Arko, A.J.; Joyce, J.J. [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
1998-08-01
A Comment on the Letter by M. Garnier {ital et al.,} Phys.thinspthinspRev.thinspthinspLett.thinspthinsp{bold 78}, 4127 (1997). The authors of the Letter offer a Reply. {copyright} {ital 1998} {ital The American Physical Society}
Full Text Available tructural knowledge. Nat. Immunol.|J. Clin. Immunol.|Cell. Mol. Immunol.|Proc. Jpn. Acad., Ser. B, Phys. Biol. Sci.|FEBS Lett. 19067132|18087252|20118971|20551597|21420960 MPB4.csml ...
Thermodynamic constraints on the amplitude of quantum oscillations
Shekhter, Arkady; Modic, K. A.; McDonald, R. D.; Ramshaw, B. J.
2017-03-01
Magneto-quantum oscillation experiments in high-temperature superconductors show a strong thermally induced suppression of the oscillation amplitude approaching the critical dopings [B. J. Ramshaw et al., Science 348, 317 (2014), 10.1126/science.aaa4990; H. Shishido et al., Phys. Rev. Lett. 104, 057008 (2010), 10.1103/PhysRevLett.104.057008; P. Walmsley et al., Phys. Rev. Lett. 110, 257002 (2013), 10.1103/PhysRevLett.110.257002]—in support of a quantum-critical origin of their phase diagrams. We suggest that, in addition to a thermodynamic mass enhancement, these experiments may directly indicate the increasing role of quantum fluctuations that suppress the quantum oscillation amplitude through inelastic scattering. We show that the traditional theoretical approaches beyond Lifshitz-Kosevich to calculate the oscillation amplitude in correlated metals result in a contradiction with the third law of thermodynamics and suggest a way to rectify this problem.
Noise induces rare events in granular media.
Khain, Evgeniy; Sander, Leonard M
2016-09-01
The granular Leidenfrost effect [B. Meerson, et al., Phys. Rev. Lett. 91, 024301 (2003)PRLTAO0031-900710.1103/PhysRevLett.91.024301; P. Eshuis et al., Phys. Rev. Lett. 95, 258001 (2005)PRLTAO0031-900710.1103/PhysRevLett.95.258001] is the levitation of a mass of granular matter when a wall below the grains is vibrated, giving rise to a hot granular gas below the cluster. We find by simulation that for a range of parameters the system is bistable: the levitated cluster can occasionally break and give rise to two clusters and a hot granular gas above and below. We use techniques from the theory of rare events to compute the mean transition time for breaking to occur. This requires the introduction of a two-component reaction coordinate.
Bell diagonal states with maximal Abelian symmetry
Chruściński, Dariusz; Kossakowski, Andrzej
2010-12-01
We provide a simple class of 2-qudit states for which one is able to formulate necessary and sufficient conditions for separability. As a by-product, we generalize the well-known construction provided by Horodecki [Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.82.1056 82, 1056 (1999)] for d=3. It is hoped that these states with known separability and entanglement properties may be used to test various notions in entanglement theory.
Simulation Evidence for Nonlocal Interface Models: Two Correlation Lengths Describe Complete Wetting
Pang, Lijun; Landau, D. P.; Binder, K.
2011-06-01
Monte Carlo simulations of (fluctuating) interfaces in Ising models confined between competing walls at temperatures above the wetting transition are presented and various correlation functions probing the interfacial fluctuation are computed. Evidence for the nonlocal interface Hamiltonian approach of A. O. Parry et al. [Phys. Rev. Lett. 93, 086104 (2004)PRLTAO0031-900710.1103/PhysRevLett.93.086104] is given. In particular, we show that two correlation lengths exist with different dependence on the distance D between the walls.
Mutated hybrid inflation in $f(R,{\\Box}R)$-gravity
Iihoshi, Masao
2010-01-01
A new hybrid inflationary scenario in the context of $f(R,{\\Box}R)$-gravity is proposed. Demanding the waterfall field to 'support the potential from below' [unlike the original proposal by Stewart in Phys. Lett. B345, 414 (1995)], we demonstrate that the scalar potential is similar to that of the large-field chaotic inflation model proposed by Linde in Phys. Lett. B129, 177 (1983).
Prospects for photon blockade in four level systems in the N configuration with more than one atom
Greentree, A D; D'Echaniz, S R; Durrant, A V; Marangos, J P; Greentree, Andrew D.; Vaccaro, John A.; Echaniz, Sebastian R. de; Durrant, Alan V.; Marangos, Jon P.
2000-01-01
We show that for appropriate choices of parameters it is possible to achievephoton blockade in idealised one, two and three atom systems. We also includerealistic parameter ranges for rubidium as the atomic species. Our resultscircumvent the doubts cast by recent discussion in the literature (Grangier etal Phys. Rev Lett. 81, 2833 (1998), Imamoglu et al Phys. Rev. Lett. 81, 2836(1998)) on the possibility of photon blockade in multi-atom systems.
Prospects for photon blockade in four level systems in the N configuration with more than one atom
Greentree, Andrew D.; Vaccaro, John A.; de Echaniz, Sebastian R.; Durrant, Alan V.; Marangos, Jon P.
2000-02-01
We show that for appropriate choices of parameters it is possible to achieve photon blockade in idealised one, two and three atom systems. We also include realistic parameter ranges for rubidium as the atomic species. Our results circumvent the doubts cast by recent discussion in the literature (Grangier et al Phys. Rev Lett. 81, 2833 (1998), Imamoglu et al Phys. Rev. Lett. 81, 2836 (1998)) on the possibility of photon blockade in multi-atom systems.
Fast Optically Driven Spin Qubit Gates in an InAs Quantum Dot
2010-01-01
epitaxy. The sample is placed in a magneto cryostat to enable operating temperatures of approximately 5 K. Optical excitation through 1μm diameter...Reinecke and D. Gammon, “ Optical Spin Initialization and Nondestructive Measurement in a Quantum Dot Molecule ”, Phys. Rev. Lett., 101, 236804 (2008) 12...Theory of Fast Optical Spin Rotation in a Quantum Dot Based on Geometric Phases and Trapped States”, Phys. Rev. Lett., 99, 217401 (2007) 16. Y
Growth of GaN- and ZnO-Based Nanorod Compound Structures
2013-08-16
Salomon , X. Chen, C. Bougerol, J. P. Barnes, D. S. Dang, L. Rigutti, A. de Luna Bugallo, G. Jacopin, M. Tchernycheva, C. Durand, and J. Eymery, Nano Lett...Julien, C. Durand, X. J. Chen, D. Salomon , J. Eymery, and M. Tchernycheva, Appl. Phys. Lett. 98, 233107 (2011). 21. G. Jacopin, A. D. L. Bugallo...P. Lavenus, L. Rigutti, F. H. Jullien, L. F. Zagonel, M. Kociak, C. Durand, D. Salomon , X. J. Chen, J. Eymery, and M. Tchernycheva, Appl. Phys
New Method for Finding a Series of Exact Solutions to Generalized Breaking Soliton Equation
BAI Cheng-Lin; GUO Jun; ZHAO Hong
2005-01-01
In this paper, a new generalized extended tanh-function method is presented for constructing soliton-like,period-form solutions of nonlinear evolution equations (NEEs). This method is more powerful than the extended tanhfunction method [Phys. Lett. A 277 (2000) 212] and the modified extended tanh-function method [Phys. Lett. A 285 (2001) 355]. Abundant new families of the exact solutions of Bogoyavlenskii's generalized breaking soliton equation are obtained by using this method and symbolic computation system Maple.
1992-05-01
of technological utility. The iron- oxo clusters also present interest as synthetic analogue or model systems of biomineralization processes such as...edited by G. Benedek, T.P. Martin, and G. Pacchioni ( Springer , Berlin, 1988); J.J. Krebs, P. Lubitz, A. Chaiken, and G.A. Prinz, Phys. Rev. Lett. 63...Microclusters, edited by S. Sugano, Y. Nishina, and S. Ohnishi, ( Springer , Berlin, 1987); E.S. Smotkin et.al., Chem. Phys. Lett. 152, 265 (1988); M.L
A New Modified Extended Tanh-Function Method and Its Application
BAI Cheng-Lin; ZHAO Hong
2004-01-01
In this paper, a new modified extended tanh-function method is presented for constructing soliton-like,periodic form solutions of nonlinear evolution equation (NEEs). This method is more powerful than the extended tanhfunction method [Phys. Lett. A277 (2000) 212] and the moditied extended tanh-function method [Phys. Lett. A285(2001) 355]. Abundant new solutions of two physically important NEEs are obtained by using this method and symbolic computation system Maple.
Persistent Infrared Spectral Hole-Burning for Impurity Vibrational Modes in Solids.
1986-09-30
1974), Vol. I, pp. 231-279. 6.5 See for example, M. Poliakoff , N. Breedon, B. Davies, A. McNeish, J. J. Turner: Chem. Phys. Lett. 56, 474 (1978). 6.6 M...P. Huber-Walchli, H. H. Gonthard: Chem. Phys. Lett. 30, 347-351 (1975). 6.48 M. Poliakoff , 1. J. Turner: "Infrared Laser Photochemistry in Matrices
Improved analysis of GW150914 using a fully spin-precessing waveform model
2016-01-01
This paper presents updated estimates of source parameters for GW150914, a binary black-hole coalescence event detected by the Laser Interferometer Gravitational-wave Observatory (LIGO) in 2015 [Abbott et al. Phys. Rev. Lett. 116, 061102 (2016).]. Abbott et al. [Phys. Rev. Lett. 116, 241102 (2016).] presented parameter estimation of the source using a 13-dimensional, phenomenological precessing-spin model (precessing IMRPhenom) and an 11-dimensional nonprecessing effective-one-body (EOB) mode...
High Speed Compound Semiconductor Devices in Layered Structures.
1986-02-25
Wiegman , Phys. Rev. Letts. 54, 1570 -" (1985). - (3) A.F.J. Levi, J.R. Hayes and P.M. Platzman and W.W,egman, Phys. Rev. Lets. 55, 2071 (1985). (4) 1.R...Hayes, A.F.J. Levi, andW. Wiegman , lectronLett. 20, 851, (1984). (5) S. Muto, K. Imamura, N. Yokoyma, S. Hiyamizu and H. Nishi, Electron Lbtt., 21, 555
Dynamics of solitons in Bose-Einstein condensate with time-dependent atomic scattering length
Li Hua-Mei
2006-01-01
The evolution of solitons in Bose-Einstein condensates (BECs) with time-dependent atomic scattering length in an expulsive parabolic potential is studied. Based on the extended hyperbolic function method, we successfully obtain the bright and dark soliton solutions. In addition, some new soliton solutions in this model are found. The results in this paper include some in the literature (Phys. Rev. Lett. 94 (2005) 050402 and Chin. Phys. Lett. 22 (2005) 1855).
SONG Xin-Guo; FENG Xun-Li
2005-01-01
@@ We analyse further the entanglement purification protocol proposed by Feng et al. [Phys. Lett. A 271 (2000) 44] in the case of imperfect local operations and measurements. It is found that this protocol allows of higher error threshold. Compared with the standard entanglement purification proposed by Bennett et al. [Phys. Rev.Lett. 76 (1996) 722], it turns out that this protocol is remarkably robust against the influences of imperfect localoperations and measurements.
Microdischarges for Phased Arrays of Low Coherence Emitters, and Microchip and Microsphere Lasers
2008-02-01
061121 (2006). 4. S.-J. Park, T. M. Spinka, and J. G. Eden, AppI . Phys. Lett., 89, 031502 (2006). 5. J. P. Bocuf, L. C. Pitchford, and K. H. Schoenbach...devices: Luminous efficacy above 6 lumens/watt 22 with Ne/50% Xe mixtures and a green phosphor," AppI . Phys. Lett., vol. 88, 061121, February 6, 2006. 38
Current Collapse Induced in AlGaN/GaN High-Electron-Mobility Transistors by Bias Stress
2003-08-25
structure where the traps causing current collapse can be passivated by forming H-defect complexes. Hierro et al.7 have shown, for example, that deep...Lett. 75, 4016 ~1999!. 7 A. Hierro , S. A. Ringel, M. Hansen, J. S. Speck, U. K. Mishra, and S. P. DenBaars, Appl. Phys. Lett. 77, 1499 ~2000!. 8 S. J
Lipid Bilayer-Integrated Optoelectronic Tweezers for Nanoparticle Manipulations
2013-01-01
Wu, M. C. Nano Lett. 2009, 9, 2921−2925. (25) Cremer , P. S.; Boxer, S. G. J. Phys. Chem. B 1999, 103, 2554− 2559. (26) Groves, J. T. Science 1997... Martin , A.; Forster, R. J.; Keyes, T. E. Soft Matter 2012, 8, 8743. (33) Ba, H.; Rodríguez-Fernańdez, J.; Stefani, F. D.; Feldmann, J. Nano Lett. 2010
Evidence for Adsorbate-Enhanced Field Emission from Carbon Nanotube Fibers (Postprint)
2013-07-31
emit better than capped CNTs. CSA decomposes into H2S04 and HCI during coagulation and washing with water.20 Most likely, some Cl- and S- compounds...G. Wang, and D. M. Chen, Phys. Rev. Lett. 93, 075501 (2004). "’w. Wei, Y. Liu, Y. Wei, K. Jiang, L.-M. Peng, and S. Fan, Nano Lett. 7 , 64 (2007
Bloch, Daniel
2015-01-01
Comment on "Optical Response of Gas-Phase Atoms at Less than lambda/80 from a Dielectric Surface" published by K. A. Whittaker, J. Keaveney, I. G. Hughes, A. Sargsyan, D. Sarkisyan, C. S. Adams in Phys. Rev. Lett. Lett 112 253201 (2014)
2012-06-29
Goffman , M. F.; Bourgoin, J.-P. Appl. Phys. Lett. 2007, 90, 233108. (5) Nougaret, L.; Happy, H.; Dambrine, G.; Derycke, V.; Bourgoin, J.-P.; Green, A. A...Krishna, S.; Chueh, Y.-L.; Guo, J.; Javey, A. Nano Lett. 2012, 12, 2060−2066. (27) Chimot, N.; Derycke, V.; Goffman , M. F.; Bourgoin, J. P.; Happy, H
Boundary-layer effects in droplet splashing
Riboux, Guillaume; Gordillo, José Manuel
2017-07-01
A drop falling onto a solid substrate will disintegrate into smaller parts when its impact velocity V exceeds the so-called critical velocity for splashing, i.e., when V >V* . Under these circumstances, the very thin liquid sheet, which is ejected tangentially to the solid after the drop touches the substrate, lifts off as a consequence of the aerodynamic forces exerted on it. Subsequently, the growth of capillary instabilities breaks the toroidal rim bordering the ejecta into smaller droplets, violently ejected radially outward, provoking the splash [G. Riboux and J. M. Gordillo, Phys. Rev. Lett. 113, 024507 (2014)], 10.1103/PhysRevLett.113.024507. In this contribution, the effect of the growth of the boundary layer is included in the splash model presented in Phys. Rev. Lett. 113, 024507 (2014), 10.1103/PhysRevLett.113.024507, obtaining very good agreement between the measured and the predicted values of V* for wide ranges of liquid and gas material properties, atmospheric pressures, and substrate wettabilities. Our description also modifies the way at when the liquid sheet is first ejected, which can now be determined in a much more straightforward manner than that proposed in Phys. Rev. Lett. 113, 024507 (2014), 10.1103/PhysRevLett.113.024507.
Inorganic Halogen Oxidizer Research
1975-02-26
Fessenden and R. H. Schüler, J. Chem. Phys., 43, 2704 (1965). (II) J. Maruani, J.A.R. Coope, and C A. McDowell, Mol. Phys., 18, 105 (1970). (12) J...14) W. E. Tolberg, private eommuncation. (15) R. W. Fessenden , J. Chem. Phys., 37, 747 (1902). (l’\\) J.A.R. Coope, Chem. Phys. Letts., 3, 589...W. Fessenden and 11. II. Schüler, J. Chem. Phys., 45, 1845 (i960). (20) F. G. Herring, J. II. Hwang and W. C. Lin, J. Phys. Chem.» 71, 2080 (1907
2009-01-15
The most compact technique to store hydrogen is the metal hydride technique. With this, hydrogen is stored more compact than in liquid form, and it occurs in many instances reversibly at pressures close to the atmospheric pressure. There is though a serious obstacle to many uses of the technique, namely the weight. Most metal hydrides only store 1-2 weight percent hydrogen at moderate temperatures, while there for mobile applications is a demand for 5-10 %. The goal of the present project was to develop new effective materials for hydrogen storage based on light elements. One promising candidate for this is NaAlH{sub 4}, which is known to store hydrogen reversibly in the temperature range 150-200 deg. C with a hydrogen weight capacity of 4-7.5 %.The kinetics of the absorption and desorption of hydrogen in this material when doped with titanium have been shown to improve dramatically yielding it viable for practical applications. In the present project the kinetics were examined by neutron scattering and computer simulations. Here, the kinetic barrier for desorption of hydrogen in NaAlH{sub 4} was found to be reduced to 1/3 when titanium is added, thus giving an explanation for the effectiveness of titanium doping of NaAlH{sub 4}. Experimentally,a result of the project was a dramatic lowering of the desorption temperature by mixing with the compound LiBH{sub 4}. LiBH{sub 4} was also examined in combination with BCC metals, which also proved to lower the desorption temperature. Other, new materials were examined with regard to their use for hydrogen storage, such as the Li-Si-N and Li-AI-N systems. Li{sub 5}SiN{sub 3} was synthesized from Li{sub 3}N and Si by ball milling under nitrogen pressure, and the compound was shown to take up 4 wt%H{sub 2}. Most of this could be desorbed under the reaction conditions (below300 deg. C), thus showing partly reversibility. A related compound, Li{sub 2}SiN{sub 2}, proved to be able to take up nearly 5 wt% (close to the assumed theoretical amount). A complimentary Li-Si-N system containing hydrogen from the start, 2LiNH{sub 2}+Si, was examined with regard to hydrogen desorption, and it was found that up to 5 wt% could be desorbed below 200 deg. C when doping with TiCl{sub 3}. An issue for this system is ammonia release starting around 200 deg. C, and it has yet to show reversibility. Li{sub 3}AlN{sub 2} was also synthesized, and it proved to be able to store 2 wt% below 300 deg. C of which about 1 wt% was reversible. Li{sub 2}AlN{sub 2} has a problem of desorbing ammonia in its hydrogenated state. As part of the experimental work, several pieces of specialized equipment for characterization and synthesis of hydrogen storage materials were acquired or built. Examples include an improved glovebox at Risoe DTU and a high pressure microbalance at DTU. (au)
Sundstrøm, Terje; Wester, Knut; Enger, Martine
2013-01-01
BACKGROUND In 2000, the Scandinavian Neurotrauma Committee (SNC) published evidence-based guidelines for the management of minimal, mild or moderate head injuries. Since then, considerable new evidence has emerged on the clinical use of these guidelines and on the radiation risks associated with ...
Springborg, Jtiaocnob Bertram; Undén, Johan; Ingebrigtsen, Tor
2009-01-01
the biomarker S100B. The specificity of S100B is low, but a high sensitivity for brain damage results in a clinically useful, high negative predictive value (NPV). Integration of S100B into existing management routines can reduce the need for CT scans or admission by over 30%. Udgivelsesdato: 2009-Mar-16...
Pedersen, Alma B; Mehnert, Frank; Overgaard, Søren
2009-01-01
INTRODUCTION: We examined the use of blood transfusion in patients undergoing total hip arthroplasty (THA) at 21 orthopaedic departments in Denmark. MATERIAL AND METHODS: Patients with primary THA (n = 21,773) between 1999 and 2006 were identified from the Danish Hip Arthroplasty Registry. Data o...
Magnetically Insulated Opening Switch Research.
1987-01-01
this research is to investigate the validity of the magneti- cally insulated opening switch concept proposed by Eninger (Ref. 5, Appendix 1). The...1973). 3. Y. Carmel, and J. Nation, Phys, Rev. Lett. 31, 286 (1973). 4. T.J. Orzechowski, and G. Bekefi, Phys. Fluids 19, 43 (1976). U 5. 3. Eninger
Adsorption and Accommodation of Xe on Pt(111)
1992-05-25
atoms on metal surfaces.15. 16 15 May 1992 -7- Acknowledgments The authors would like to thank Dan Auerbach, Mark Cardillo, Milton Cole, Roald ...Phys. Rev. Lett. 66, 1998 (1991). 15. S. C. Wang and G. Ehrlich, J. Chem. Phys. 94, 4071 (1991). 16. D. E. Sanders and A. E. DePristo, Surf. Sci. 254
Theory of the Tetragonal-to-Orthorhombic Structural Phase Transition in La2CuO4.
1987-11-01
J. G. Bednorz and K. A. Muller, Z. Phys. B j4, 189 (1986). 2. C. W. Chu, P. H. Hor, R. L. Meng, L. Gao, Z. J. Huang and Y. Q. Wang , Phys. Rev. Lett...Chemistry University of2 chester Pennsylvania State University Roches ew York 14627 University Park, Pennsylvania 16802 r. G. Rubloff Dr. Roald
Angular Dependence of Vortex Annihilation Fields in Asymmetric Co Dots
2009-07-15
2 J. I. Martin , J. Nogues, K. Liu, J. L. Vicent, and I. K. Schuller, J. Magn. Magn. Mater. 256, 449 (2003). 3 S. D. Bader, Rev. Mod. Phys. 78, 1...K. S. Buchanan, M. Grimsditch, M. D. Baro , B. Dieny, and J. Nogues, Phys. Rev. Lett. 95, 067201 (2005). 10 A. Barman, S. Wang, J. Maas, A. R
Reliability-Limiting Defects in GaN/AlGaN High Electron Mobility Transistors
2011-12-01
GaN grown by plasma-assisted molecular beam epitaxy”, Appl. Phys. Lett., vol. 77, no. 18, pp. 2885- 2887, 2000. [24] A. Hierro , A. R. Arehart, B...defects and impurities: Applications to III-nitrides”, J. Appl. Phys., vol. 95, pp.3851-3879, 2004. [43] A. Hierro , S. A. Ringel, M. Hansen, J. S
First-Principles Study of Defects in GaN, AlN and Their Alloys
2010-08-31
Physics 76, 1363 (1994). [7] F. A. Ponce and D. P. Bour, Nature 386, 351 (1997). [8] S. Nakamura, M. Senoh, S.-i. Nagahama, N. Iwasa, T. Yamada, T...Phys. Rev. Lett. 100 (2008) 167402. [7] K.R. Reyes -Gil, E.A. Reyes -Garcia, D. Raftery, J. Phys. Chem. C 111 (2007) 14579. [8] Motlan, E.M. Goldys
The early days of metamaterials
Stewart, William J.
2017-08-01
This is a personal recollection of the early development of modern metamaterials as seen from the perspective of my GEC-Marconi team and collaborators, listed in the references Pendry et al 1996 Phys. Rev. Lett. 76 4773, Pendry et al 1998 J. Phys.: Condens. Matter. 10 4785.
Optoelectronic III-V Heterostructures on SI Substrates
1990-09-14
December 1989. VI. PERSONNEL Gary Y. Robinson, Principal Investigator Mike J. Hafich, Research Associate Todd E. Crumbaker, Graduate Student, Ph.D...and G.E. Stillman, AppL. Phys. Let- 54, 1457 (1989). 7. M.A. Haase, M.A. Emmanuel , S.C. Smith,. U. Coleman, and G.E. Stillman, Appl. Phys. Lett. 50
On Solar Cycle Predictions and Reconstructions
2008-12-01
Lett.. 33. 1.18101 Hathaway, D. H . Wilson. R. M.. & Reichmann . E. J. 1994. Sol. Phys.. 151. 177 Hathaway. D. H., Wilson, R. M.. & Reichmann . E. J...1999. JGR. 104. 22375 Hathaway. D. H.. Wilson, R. M.. & Reichmann . E. J. 2002. Sol. Phys., 211, 357 Hircmath. K. M. 2006, A&A, 452, 591 Hiremalh
Dynamic Mechanism of Sustainable Molecular Orientation Generated From Cyclic Rotational States
CHI Fang-Ping; YANG Yu-Jun; HUANG Yu-Xin; ZHU Qi-Ren
2006-01-01
@@ Recently, two papers presented by Ortigoso et al. [Phys. Rev. Lett. 93 (2004) 073001 and Phys. Rev. A 72(2005) 053401] develop a novel strategy in which the best sustainable molecular alignment/orientation has been achieved. We intend to analyse the dynamic mechanisms, including those Ortigoso et al. have not clarified.
Annual Report on Electronics Research at The University of Texas at Austin.
1982-05-15
5066 (1968). 6. I.V. Hertel and W. Stoll, J. Phys. B7, 583 (1974). 7. D.F. Register, S. Trajmar, S.W. Jensen, and R.T. Poe , Phys. Rev. Lett. 41, 749...Patterson APE, Os 45433 ATYBN Mro. D. Folen, Code 2627 Dr. William 0. Mehuron Washinqton. DC 20373 Office of Reaach, Devrlopenet,Dr. Allan Schell iset I
Engineering Graphene Mechanical Systems
2012-07-05
Mohiuddin, T. M. G.; Morozov, S. V.; Blake, P.; Halsall, M. P.; Ferrari, A. C.; Boukhvalov, D. W.; Katsnelson, M. I.; Geim, A. K.; Novoselov , K. S. Science... Novoselov , K. S.; Roth, S.; Geim, A. K. Phys. Rev. Lett. 2006, 97 (18), 187401. (27) Bauschlicher, C. W., Jr.; Lawson, J. W. Chem. Phys. 2010, 374 (1
2006-09-01
J. Harper, M. Weimer, C. -H. Lin, and S. S. Pei, Phys. Rev. Lett. 85, 4562 (2000) and references therein. 27. J. L. Rouviere and N. Bonnet, Inst...Phys. Conf. Ser. 134, 11 (1993). 28. J. F. Aebersold, P. A. Stadelman, and J. L. Rouviere , Ultramicroscopy 62, 171 (1996). 29. P. Trebbia
Opto-EM and Devices Investigation
1989-06-01
1983). 4. D. A. B. Miller, D. S. Chemla, D. J. Eilenberger, P. W. Smith, A. C. Gossard, W. Wiegman Appl. Phys. Lett. 4. 925 (1983): 5. A. Ashkin, G. D...Phys. Rep. 2. 199 (1982). 8. D. A. B. Miller, D. S. Chemla, T. C. Damen, T. H. Wood, C. A. Burrus, Jr., A. Bossard, and W. Wiegman , IEEE J. Quantum
1993-10-12
R. Kearns, J. Chem. Phys., 45, 3966 (1966). 26. H. M. Gibbs, S. L. McCall, T. N. C. Venkatesan, A. C. Gossard, A. P. Passner, and W. Wiegman , Appl...Venkatesan. A. C. Gossard. A. P. gthe measured carrier lifetime to theoret- Passner. and W. Wiegman , Appl. Phys. Lett. 35, 451 (1979). By comparing te
1987-11-01
Nordland, and W. Wiegman , J. Appl. Phys. 47, 4509 (1976). 32. K. Vilhelmsson, B. Valk, and M. M. Salour, App[. Phys. Lett. 50, 13, (1987). •. ". 26 N fj *q,)F% *. TPRIT. -. Il Alh ’P % P Jft .P N Z %% --- - .- 0
Maintaining quantum coherence in the presence of noise through state monitoring
Konrad, T
2012-01-01
Full Text Available . Lahti, Operational Quantum Physics (Springer Verlag, Heidelberg, 1995). [5] J. Audretsch, F. Klee, and T. Konrad, Phys. Lett. A 361, 212 (2007). [6] J. Audretsch, T. Konrad, and A. Scherer, Phys. Rev. A 63, 052102 (2001). [7] V. P. Belavkin...
The Importance of Network Structure in High-K Dielectrics: LaAlO3, Pr2O3, and Ta2O5
2005-08-19
CLASSIFICATION OF: 17. LIMITATION OF ABSTRACT 18. NUMBER OF PAGES 19a. NAME OF RESPONSIBLE PERSON Arthur Edwards a. REPORT Unclassified b. ABSTRACT...R. A. B. Devine, Appl. Phys. Lett. 65, 2021 1994. 26B. R. Sahu and L. Kleinman , Phys. Rev. B 69, 165202 2004. 27J. Westlinder, Y. Zhang, F
Macroscopic Quantum Coherence and Computing
2010-02-17
A. Gubrud, A. J. Berkley, J. R. Anderson, C. J. Lobb, and F. C. Wellstood, IEEE Trans AppI Supr 11,998 (2001) [2] J. M. Martinis, S. Nam, J. Aumentado...al., Phys. Rev. Lett. 87, 217003 (2001) [5] M. Savolainen, et. al., to be published in Appi . Phys. A (2004), cond-mat/031 1383 Modelling the current
Studies of Energy Storage and Transfer in Gas Lasers.
2014-09-26
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2009-08-01
the one of Fessenden and Bansal"" for the slowest-attaching halomethane shown, CHF,, is in error because dissociative electron attach- ment is 2 eV... Fessenden and K. M. Bansal. J. Chem. Phys. 53, 3468 (1970). 26Y. Wang, L. G. Christophorou. J. K. Olthoff, and J. K. Verbrugge, Chem. Phys. Lett. 304
Optical (Hyper) Polarizabilities of Small Silicon Clusters
1990-11-01
and R. E. Sinal- ley, Chem. Phys. Lett. 138. 119 (19S7): A. Kasuva and Y. -Nishina. Z. Phys. D 12, 493 (1989). 5. Y. Wang , N. Herron. WV. Mahler and A...Rev. B 37, 6991 (1988); R. Biswas. C. Z. Wang , C. T. Chan, K. NI. Ho and C. NI. Souk- oulis. Phys. Rev. Lett. 63, 1491 (1989); A. D. Nlistriotis. N...Irvine, CA 92717 Professor Frank DiSalvo Professor Roald Hoffmann Department of Chemistry Department of Chemistry Cornell University Cornell University
III-Nitride Based Optoelectronics
2010-01-01
c • N =5x1011 cm LU -, FT ac v A A A - -3.5 \\/\\/\\ : VB -4.0 V \\ N- N N • - I 1 • Length (nm) 50...GaAs/AlGaAs based npn structures," Appl. Phys. Lett., vol. 70, pp. 2876- 2878, May 1997. 102. J. M. Shah , Y.-L. Li, Th. Gessmann, and E. F. Schubert...Ning, Phys. Rev. B 74, 155308 (2006). 105. Z.-M. Liao, K.-J. Liu, J.-M. Zhang, J. Xu, and D.-P. Yu, Phys. Lett. A 367, 207 (2007). 106. J. M. Shah , Y
Ponderomotive Potential Near Gyroresonance,
1981-11-01
Gary and A. N. Kaufman, Phys. Fluids 24, 1238 (1981). 5. S. Hidekuma, S. H-iroe, T. Watari , T. Shoji, T. Sato, and K. Takayana, Phys. Rev. Lett. 33, 1537...1974). 6. E. S. Weibel, Phys. Rev. Lett. 44, 377 (1980). 7. S. Hiroe, S. Hidekuma, T. Watari , T. Shoji, T. Sato, and K. Takayama, Nuclear Fusion 15...769 (1975). 8. T. Watari , T. Hatori, R. Kumazawa, S. Hidekama, T. Aoki, T. Kawainoto, M. Inutake, S. Hiroe, A. Nishizawa, K. Adati, T. Sato, T
Toxværd, Søren; Dyre, J. C.
2011-01-01
. Lett. 103, 170601 (2009);10.1103/PhysRevLett.103.170601 J. Chem. Phys. 134, 214503 (2011)10.1063/1.3592709] . We present simulations of the standard Lennard-Jones liquid at several condensed-fluid state points, including a fairly low density state and a very high density state, as well as simulations......The traditional view that the physical properties of a simple liquid are determined primarily by its repulsive forces was recently challenged by Berthier and Tarjus, who showed that in some cases ignoring the attractions leads to large errors in the dynamics [L. Berthier and G. Tarjus, Phys. Rev...
Conditioning Electron Beams in the Ion-Focused Regime
1992-09-17
M. Fawley, D. Prosnitz and A. G. Cole, Phys. Rev. Lett. 54, 685 (1985). 13. D. S. Prono , IEEE Trans. Nucl. Sci. NS-32, 3144 (1985). 14. G. J...Caporaso, F. Rainer, V. E. Martin, D. S. Prono , and A. G. Cole, Phys. Rev. Lett. 57, 1591 (1986). 15. R. L. Carlson, S. W. Downey and D. C. Moir, J. Appl...Lampe, W. M. Sharp, R. F. Hubbard, E. P. Lee, and R. J. Briggs, Phys. Fluids 27, 2921 (1984). 58. D. S. Prono , G. J. Caporaso, A. G. Cole, R. J. Briggs
Percolation and Low Density Materials: Theory and Applications
1990-06-01
the critical point (Heermann et al 1983). E. Literature Cited Alexander S and Orbach R 1983 J Phys (Paris) 43 L625 Amitrano C, di Liberto F, Figari R...s-state Potts and n-vector models at the percolation threshold" Phys. Rev. Lett. 46, 250-3 (1981). *45. A. Coniglio, F. di Liberto and G. Monroy...1982). *81. A. Coniglio, F. di Liberto , G. Monroy and F. Peruggi, "Clusters and Ising droplets in the antiferromag- netic lattice gas" Phys. Lett. 87A
Surface Structure of Aerobically Oxidized Diamond Nanocrystals
2014-10-27
a native SiO2 oxide layer (P-type; 1 Ω·cm, SQI, San Jose, CA) were washed with persulfuric acid solution prior to use. Oxidation of Diamond... Graphene . Phys. Rep.: Rev. Sect. Phys. Lett. 2009, 473, 51−87. (34) Ferrari, A. C.; Meyer, J. C.; Scardaci, V.; Casiraghi, C.; Lazzeri, M.; Mauri, F...Piscanec, S.; Jiang, D.; Novoselov, K. S.; Roth, S.; Geim, A. K. Raman Spectrum of Graphene and Graphene Layers. Phys. Rev. Lett. 2006, 97, 187401−18740
Roca-Maza, X; Bortignon, P F; Brenna, M; Cao, Li-Gang; Centelles, M; Colò, G; Paar, N; Viñas, X; Vretenar, D; Warda, M
2013-01-01
Experimental and theoretical efforts are being devoted to the study of observables that can shed light on the properties of the nuclear symmetry energy. We present our new results on the excitation energy [X. Roca-Maza et al., Phys. Rev. C 87, 034301 (2013)] and polarizability of the Isovector Giant Quadrupole Resonance (IVGQR), which has been the object of new experimental investigation [S. S. Henshaw et al., Phys. Rev. Lett. 107, 222501 (2011)]. We also present our theoretical analysis on the parity violating asymmetry at the kinematics of the Lead Radius Experiment [S. Abrahamyan et al. (PREx Collaboration), Phys. Rev. Lett. 108, 112502 (2012)] and highlight its relation with the density dependence of the symmetry energy [X. Roca-Maza et al., Phys. Rev. Lett. 106, 252501 (2011)].
Test of Relativistic Eigenfunctions for Pseudospin Symmetry
Ginocchio, Joseph N.
2001-10-01
Pseudospin symmetry has been shown to be a relativistic symmetry of the Dirac Hamiltonian [1] and the generators of this symmetry have been determined [2]. Although the measured energy splittings between pseudospin doublets are small, the eigenfunctions of the doublets have been examined only recently [3]. We show to what extent the pseudospin partners of realistic relativistic mean field eigenfunctions [4] are themselves eigenfunctions of the same Dirac Hamiltonian. 1) J. N. Ginocchio, Phys. Rev. Lett. 78, 436 (1997). 2) J. N. Ginocchio and A. Leviatan, Phys. Lett. B 425, 1 (1998). 3) J. N. Ginocchio and A. Leviatan, to be published in Phys. Rev. Lett. (2001). 4) J. N. Ginocchio and D. G. Madland, Phys. Rev. C 57, 1167 (1998).
Vargas, M.; Schumaker, W.; He, Z.-H.; Zhao, Z.; Behm, K.; Chvykov, V.; Hou, B.; Krushelnick, K.; Maksimchuk, A.; Yanovsky, V.; Thomas, A. G. R., E-mail: agrt@umich.edu [Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109 (United States)
2014-04-28
High intensity, short pulse lasers can be used to accelerate electrons to ultra-relativistic energies via laser wakefield acceleration (LWFA) [T. Tajima and J. M. Dawson, Phys. Rev. Lett. 43, 267 (1979)]. Recently, it was shown that separating the injection and acceleration processes into two distinct stages could prove beneficial in obtaining stable, high energy electron beams [Gonsalves et al., Nat. Phys. 7, 862 (2011); Liu et al., Phys. Rev. Lett. 107, 035001 (2011); Pollock et al., Phys. Rev. Lett. 107, 045001 (2011)]. Here, we use a stereolithography based 3D printer to produce two-stage gas targets for LWFA experiments on the HERCULES laser system at the University of Michigan. We demonstrate substantial improvements to the divergence, pointing stability, and energy spread of a laser wakefield accelerated electron beam compared with a single-stage gas cell or gas jet target.
Stability and Scaling of High Current Cyclic Accelerators
1989-05-17
145 925 (1966); J.D. Daugherty, J.E. Eninger and G.S. Janes,.Phys. Fluids 12 2677 (1969). 14. N. Rostoker, Comments on Plasma Physics 6 91 (1980). 15...17. G. S. lanes, R. H. Levy, H. A. Bethe. and B. T. Feld, Phys. Rev. Lett. 145, 925 (1966), J. D. Daugherty, J. E. Eninger and G. S. Janes. Phys
2015-03-24
Moewes, Carbon 66, 539 (2014); A. Mathkar, D. Tozier, P. Cox, P. J. Ong , C. Galande, K. Balakrishnan, A. L. M. Reddy, and P. M. Ajayan, J Phys Chem...Tzolov, J. H. Kim, Z. J. Liu, and J. Xu, J Phys Chem C 114 (51), 22703(2010). P. L. Ong , W. B. Euler, and 1. A. Levitsky, ApplPhysLett96(3)(2010); M
Predictions of Properties of Energetic Materials from First Principles
2010-01-01
Phys., 123, 214103, 2005. 6. Podeszwa, R., R. Bukowski , B.M. Rice, and K. Szalewicz, Phys. Chem. Chem. Phys., 9, 5561, 2007. 7. Podeszwa, R., B.M...2003. 23. Hesselmann, A., G. Jansen, and M. Schütz, J. Chem. Phys., 122, 014103, 2005. 24. Bukowski , R., R. Podeszwa, and K. Szalewicz, Chem...Phys. Lett., 414, 111, 2005. 25. Podeszwa, R., R. Bukowski , and K. Szalewicz, J. Chem. Theo. Comp., 2, 400, 2006. 26. Dunlap, B.I., J.W.D. Connolly
Crystal Structure Prediction for Cyclotrimethylene Trinitramine (RDX) from First Principles
2009-04-01
9 R. Podeszwa, B. M. Rice and K. Szalewicz, Phys. Rev. Lett., 2008, 101, 115503. 10 R. Podeszwa, R. Bukowski , B. M. Rice and K. Szalewicz, Phys. Chem...Jansen and M. J. Schütz, Chem. Phys., 2005, 122, 014103. 13 R. Podeszwa, R. Bukowski and K. Szalewicz, J. Chem. Theory Comput., 2006, 2, 400. 14 R...Podeszwa, R. Bukowski and K. Szalewicz, J. Phys. Chem. A, 2006, 110, 10345. 15 R. Podeszwa and K. Szalewicz, J. Chem. Phys., 2007, 126, 194101. 16 W. B
Orthogonal polynomials and operator orderings
Hamdi, Adel; 10.1063/1.3372526
2010-01-01
An alternative and combinatorial proof is given for a connection between a system of Hahn polynomials and identities for symmetric elements in the Heisenberg algebra, which was first observed by Bender, Mead, and Pinsky [Phys. Rev. Lett. 56 (1986), J. Math. Phys. 28, 509 (1987)] and proved by Koornwinder [J. Phys. Phys. 30(4), 1989]. In the same vein two results announced by Bender and Dunne [J. Math. Phys. 29 (8), 1988] connecting a special one-parameter class of Hermitian operator orderings and the continuous Hahn polynomials are also proved.
Spin-Transfer-Torques at a Ferromagnet/Antiferromagnet Interface
Tsoi, Maxim
2009-03-01
Spintronics in ferromagnetic systems is built on a complementary set of phenomena in which the magnetic configuration of the system influences its transport properties and vice versa. Giant magnetoresistance (GMR) [1] and spin- transfer-torque (STT) [2] phenomena are typical examples of such interconnections. Recently, MacDonald and co-workers [3] predicted that corresponding effects ought to occur in systems where ferromagnetic (F) components are replaced by antiferromagnets (AFM). I will present our experimental search for these new AFM effects which may potentially lead to a new all-antiferromagnetic spintronics where antiferromagnets are used in place of ferromagnets. In particular I will focus on our experiments with exchange-biased spin valves [4] where extreme current densities were found to affect the exchange bias at F/AFM interface [5-7]. As exchange bias is known to be associated with interfacial AFM magnetic moments, our observation can be taken as the first evidence of STT effect in AFM materials. [4pt] [1] M. N. Baibich et al., Phys. Rev. Lett. 61, 2472 (1988); G. Binasch et al., Phys. Rev. B 39, 4828 (1989). [0pt] [2] J. C. Slonczewski, J. Magn. Magn. Mater. 159, L1 (1996); L. Berger, J. Appl. Phys. 81, 4880 (1997); M. Tsoi et al., Phys. Rev. Lett. 80, 4281 (1998). [0pt] [3] A. S. N'uñez et al., Phys. Rev. B 73, 214426 (2006); [0pt] [4] Z. Wei et al., Phys. Rev. Lett. 98, 116603 (2007). [0pt] [5] S. Urazhdin and N. Anthony, Phys. Rev. Lett. 99, 046602 (2007). [0pt] [6] X-L.Tang et al., Appl. Phys. Lett. 91, 122504 (2007). [0pt] [7] N. V. Dai et al., Phys. Rev. B77, 132406 (2008).
The phonon buckling mode in YBa{sub 2}Cu{sub 3}O{sub 6+x} measured by inelastic neutron scattering
Raichle, Markus; Bakr, Mohammed; Hinkov, Vladimir; Ulrich, Clemens; Broell, Markus; Lin, Chengtian; Keimer, Bernhard [MPI fuer Festkoerperforschung, Stuttgart (Germany); Reznik, Dmitry; Lamago, Daniel; Bourges, Philippe; Sidis, Yvan [Laboratoire Leon Brillouin, Paris (France); Hradil, Klaudia [Universitaet Goettingen, Goettingen (Germany)
2008-07-01
Cuk et al.[Phys. Rev. Lett. 93, 117003 (2004)] and Devereaux et al.[Phys. Rev. Lett. 93, 117004 (2004)] relate the antinoidal kink in ARPES measurements with the B1g phonon buckling mode. However, this assumption is controversial as this kink has also been related to the magnetic resonance mode by Kaminski et al.[Phys. Rev. Lett. 86, 1070 (2001)] and Kim et al.[Phys. Rev. Lett. 91, 167002 (2003)]. Until now inelastic neutron scattering measurements on this phonon mode on YBa{sub 2}Cu{sub 3}O{sub 6+x} by Reznik et al.[Phys. Rev. Lett. 75, 2396 (1995)] has only been done on twinned samples for x=1. Here we present high resolution neutron measurements on the buckling mode on YBCO for x=0.6 and x=1.0. These measurements performed at Puma and 1T1 at Saclay have been made on fully detwinned samples. Thus we could show that this phonon mode performes an anisotropic superconductivity-induced interaction with a neighboring phonon mode. Hence these measurements enrich the experimental evidence for superconductivity induced phonon effects in high temperature superconductors.
Erratum to: “Vortex fermion on the lattice” [Nucl. Phys. B 636 (2002) 264 290
Nagao, Keiichi
2008-09-01
In Ref. [H. Neuberger, hep-lat/03030090] Neuberger studied a vortex fermion model with two continuum extra-dimensions, and pointed out that there are no k≠0 zero modes, which is in disagreement with our paper. Since this discrepancy is due to an error in our paper, we give relevant corrections. The main result of our paper that a normalizable zero mode solution appears at the core of the vortex does not change.
Alternative Interpretation of Nucl. Instrum. Methods Phys. Res. A 410 (1998) 357 (H. Dewa et al.)
Bernard, D; Leemans, W P; Esarey, E; Joshi, C
1999-01-01
We consider a recent publication [H. Dewa et al., NIM A 410, 357 (1998)] of an experiment on ultra-high energy laser wakefield acceleration of electrons, involving channeling of the laser pulse in the plasma. We find that in these experiments, channeling of the laser pulse may not have occurred and the detected electron signal may be background noise resulting from multiple electron scattering.
Comment on ``Particle size distribution effects on sintering rates'' [J. Appl. Phys. 60, 383 (1986)
Harrett, T.
1987-06-01
A recent paper in the Journal of Applied Physics analyzed the dependence of sintering rate on power particle-size distribution to derive a basic relative rate constant for the process. The derivation involved rather cumbersome numerical quadratures of the lognormal functions concerned. This procedure is unnecessary, since an exact closed-form result, as given in this Comment, is easily obtained. Some fairly obvious incidental errors in the original presentation are also corrected. Several other lognormal distribution integrals, apparently unlisted in previous literature and which might prove similarly useful in connection with distribution problems, are also presented.
Comment on "An optimized potential for carbon dioxide" [J. Chem. Phys. 122, 214507 (2005)
Merker, T.; Vrabec, J.; Hasse, H.
2009-01-01
A molecular model for carbon dioxide is assessed regarding vapor-liquid quilibrium properties.Large deviations, being above 15 %, are found for vapor pressure and saturated vapor density in the entire temperature range.
Denoising of electron beam Monte Carlo dose distributions. Erratum. Phys. Med. Biol. 45 1765-1779
Deasy, Joseph O
2000-08-01
A printed error has been discovered on pages 1771 and 1772 of the above paper. Figures 4 and 5 should have been the other way around (the captions were correct as printed). For the correct version see the electronic journal. (author)
Douglass, Eric; Zhao, Yunjie; Hill, Lucas; Brenman, David; Olsen, Thomas; Wiener, Richard
2008-11-01
Chaos has been observed in the formation of Taylor Vortex pairs in Modified Taylor Couette flow with hourglass geometry. Control of chaos has been demonstrated in this system employing the RPF algorithm. Seeking alternative algorithms, we are implementing the OGY algorithm in a numerical model of a damped driven mechanical pendulum and a physical apparatus. We report on both and future plans for the Modified Taylor-Couette system. Wiener et al, Phys. Rev. E 55, 5489 (1997). Rollins et al, Phys. Rev. E 47, R780 (1993). Wiener et al, Phys. Rev. Lett. 83, 2340 (1999). E. Ott, C. Grebogi, & J. A. Yorke, Phys. Rev. Lett. 64, 1196 (1990). G. L. Baker, Am. J. Phys. 63, 832 (1995). J. A. Blackburn et al, Rev. Sci. Instr. 60, 422 (1989).
Electron Acoustic Waves and the Search for a Truly Self-Consistent Large-Amplitude Plasma Response
Johnston, Tudor; Afeyan, Bedros
2003-10-01
We examine some theoretical nonlinear Vlasov work invoked in connection with recent laser-plasma experiments [1] on Electron Acoustic Waves and their stimulated scatter (SEAS). Earlier work discussed [2-5] is then related to more recent theory [6] used to interpret [1]. All this [2-6] is then related the recent Vlasov-Poisson findings of Afeyan et al. [7] on Kinetic Electrostatic Electron Nonlinear (KEEN) waves. (Part of this work was performed under the auspices of the U.S. Department of Energy under grant number DE-FG03-NA00059.) [1] D.S. Montgomery et al., Phys. Rev. Lett. 87, 155001 (2001), Phys. Plasmas 9, 2311(2002). [2] I.B. Bernstein et al., Phys.Rev. 108, 546 (1957). [3] W.P. Allis, paper no. 3 pp. 21-42, in In Honor of Philip M. Morse, ed. H. Feshbach and K. Ingard, MIT Press, Cambridge, MA, (1969). (Source for V.B. Krapchev and A.K. Ram, Phys. Rev. A, 22, 1229 (1980)). [4] H. Schamel, Phys. Scr. 20, 336 (1979), Phys. Rep. 140, 161 (1986), Phys. Plasmas 7, 4831 (2000). [5] J.P. Holloway and J.J. Dorning, Phys. Lett. A 138, 279 (1989) and Phys. Rev. A 44, 3856 (1991). [6] H. A. Rose and D. A. Russell, Phys. Plasmas 8, 4784 (2001). [7] B. B. Afeyan et al., "Optical Mixing Generated Kinetic Electrostatic Electron Nonlinear (KEEN) Waves", manuscript in preparation and poster at this conference.
Zhao, Xing-Dong; Zhao, Xu; Jing, Hui; Zhou, Lu; Zhang, Weiping
2013-05-01
We propose to realize controllable squeezing states of ferromagnetic magnons with a spinor Bose-Einstein condensate confined in an optical lattice. We use an external laser field to induce optical dipole-dipole interaction, which leads to magnon excitations of the system. By focusing on the role of the long-range magnetic and the optical dipole-dipole interactions, we show that the existence and properties of the produced squeezed magnons can be well controlled by tuning the transverse trapping widths of the condensates. We also show that the magnon excitations in this system have a close analogy with the dynamical Casimir effect at finite temperature predicted by Plunien [Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.84.1882 84, 1882 (2000)] and Jing [Phys. Lett. APYLAAG0375-960110.1016/S0375-9601(00)00165-1 268, 174 (2000)].
Trojan-horse attacks on quantum key distribution with classical Bob
Yang, Yu-Guang; Sun, Si-Jia; Zhao, Qian-Qian
2015-02-01
Recently, Boyer et al. (Phys Rev Lett 99:140501, 2007) introduced a conceptually novel semi-quantum key distribution scheme (BKM07). Tan et al. (Phys Rev Lett 102:098901, 2009) showed that classical Bob is unable to detect Eve's eavesdropping by giving a special implementation of BKM07 protocol. In the reply, Boyer et al. (Phys Rev Lett 102:098902, 2009) gave a solution against the eavesdropping, i.e., Bob may place a filter that allows only photons with approximately specific frequency to pass just at the expected time . However, their improvement contradicts the descriptions about "classical." If the assumption of "classical" is not considered, we give a delay-photon Trojan-horse attack on BKM07 protocol and its improvement and further present a possible improvement.
Time-reversal Aharonov-Casher effect in mesoscopic rings with spin-orbit interaction
Zhu, Zhenyue; Wang, Yong; Xia, Ke; Xie, X. C.; Ma, Zhongshui
2007-09-01
The time-reversal Aharonov-Casher (AC) [Phys. Rev. Lett. 53, 319 (1984)] interference effect in the mesoscopic ring structures, based on the experiment in Phys. Rev. Lett. 97, 196803 (2006), is studied theoretically. The transmission curves are calculated from the scattering matrix formalism, and the time-reversal AC interference frequency is singled out from the Fourier spectra in numerical simulations. This frequency is in good agreement with analytical result. It is also shown that in the absence of magnetic field, the Altshuler-Aronov-Spivak type [JETP Lett. 33, 94 (1981)] (time reversal) AC interference is retained under the influence of strong disorder, while the Aharonov-Bohm type [Phys. Rev. 115, 485 (1959)] AC interference is suppressed.
Ultrafast Coercivity Dynamics in GaMnAs
Hall, Kimberley; Zahn, Jeremy; March, Samuel; Liu, Xinyu; Furdyna, Jacek
2008-03-01
The hole-mediated ferromagnetism in III-Mn-V diluted magnetic semiconductors opens up a whole host of possibilities for future multifunctional devices. Control over the ferromagnetic properties in these materials through hole density modulation has been demonstrated using electrical gates [1] and CW optical excitation [2], and more recently using femtosecond optical excitation [3,4]. Using time-resolved magneto-optical Kerr Effect spectroscopy, we have measured the magnetization and coercivity dynamics in GaMnAs. Our experiments reveal a subpicosecond ferromagnetic to paramagnetic phase transition followed by coercivity enhancement on longer time scales. Our findings are promising for possible applications in ultrafast, nonthermal magneto-optical recording using diluted magnetic semiconductors. [1] H. Ohno et al., Nature 408, 944 (2000). [2] S. Koshihara et al., Phys. Rev. Lett. 78, 4617 (1997). [3] J. Wang et al., Phys. Rev. Lett. 95, 167401 (2005). [4] J. Wang et al., Phys. Rev. Lett. 98, 217401 (2007).
2014-01-28
lattice constants are determined to be a = 13.965 Å, b = 3.595 Å, c = 8.787 Å, and β = 101.34o. According to the phase diagram , bulk Gd2O3 exists in three...Phys. Lett.1994, 64, 1687-1689. 4. Egawa, T.; Zhang, B.; Ishikawa , H. IEEE Electron Device Lett.2005, 26, 169-171. 5. Iwakami, S.; Machida, O
2011-03-01
Chem. Lett. 1 (2010) 2193–2203. [3] F.T. Wagner, B. Lakshmanan, M.F. Mathias, J. Phys. Chem. Lett. 1 (2010) 2204–2219. [4] D. Linden (Ed.), Handbook ...AFRL-RQ-WP-TP-2015-0052 ELECTROCHEMICAL PERFORMANCE OF HIGHLY MESOPOROUS NITROGEN DOPED CARBON CATHODE IN LITHIUM-OXYGEN BATTERIES ...01 March 2011 4. TITLE AND SUBTITLE ELECTROCHEMICAL PERFORMANCE OF HIGHLY MESOPOROUS NITROGEN DOPED CARBON CATHODE IN LITHIUM-OXYGEN BATTERIES
Dynamics of Periodic Waves in Bose-Einstein Condensate with Time-Dependent Atomic Scattering Length
LI Hua-Mei
2007-01-01
Evolution of periodic waves and solitary waves in Bose-Einstein condensates (BECs) with time-dependent atomic scattering length in an expulsive parabolic potential is studied. Based on the mapping deformation method, we successfully obtain periodic wave solutions and solitary wave solutions, including the bright and dark soliton solutions. The results in this paper include some in the literatures [Plys. Rev. Lett. 94 (2005) 050402 and Chin. Phys. Lett. 22(2005) 1855].
A Low-loss Photonic Silica Nanofiber for Higher-order Modes
2013-07-29
Rothhardt, and A. Rauschenbeutel, “Nanofiber fabry–perot microres- onator for nonlinear optics and cavity quantum electrodynamics ,” Opt. Lett. 37, 1949...quantum electrodynamics ,” Phys. Rev. Lett. 91, 043902 (2003). #191071 - $15.00 USD Received 28 May 2013; revised 16 Jul 2013; accepted 19 Jul 2013...London, 1983). 17. A. Yariv, Optical Electronics in Modern Communications (Oxford University, New York, 1997). 18. J. A. Pechkis and F. K. Fatemi
2005-03-23
Lett. 84, 5398 s2004d. 6Y. Sun and J. A. Rogers, Nano Lett. 4, 1953 s2004d; Y. Sun , D.-Y. Khang , F. Hua, K. Hurley, R. G. Nuzzo, and J. A. Rogers...Transistors, edited by C. R. Kagan and P. Andry sDekker, New York, 2003d. 5E. Menard, K. J. Lee, D.-Y. Khang , R. G. Nuzzo, and J. A. Rogers, Appl. Phys
JIN; Hao
2001-01-01
［1］ Fisher, M. P. A., Vortex-glass superconductivity: a possible new phase in bulk high-Tc oxides, Phys. Rev. Lett., 1989, 62: 1415.［2］ Fisher, D. S., Fisher, M. P. A., Huse, D. A., Thermal fluctuations, quenched disorder, phase transitions, and transport in type*$-*$II superconductors, Phys. Rev. B, 1991, 169: 85.［3］ Feigle'man, M. V., Geshkenbein, V. B., Larkin, A. I. et al., Theory of collective flux creep, Phys. Rev. Lett., 1989, 63: 2303.［4］ Feigle'man, M. V., Geshkenbein, V. B., Vinokur, V. M., Flux creep and current relaxation in high-Tc superconductors, Phys. Rev. B, 1991, 43: 6263.［5］ Zeldov, E., Amer, N. M., Koren, G. et al., Optical and electrical enhancement of flux creep in YBa2Cu3O7-y epitaxial films, Phys. Rev. Lett., 1989, 62: 3093.［6］ Anderson, P. W., Theory of flux creep in hard superconductors, Phys. Rev. Lett., 1962, 9: 309. ［7］ Jin, H., Chen, L., Xu, X., Zhang, Y., Argument for E～j relation of high temperature superconductors, Science in China, Series A, 2000, 43(2): 163.［8］ Wen, H. H., Ziemann, P., Radovan, H. A. et al., Field-induced crossover of criticalities of vortex dynamics in Tl2Ba2CaCu2O8 thin films, Europhys. Lett., 1998, 42(3): 319.［9］ Charalambous, M., Koch, R. H., Masselink, T. et al., Subpicovolt resolution measurements of current-voltage characteristics of twinned crystalline YBa2Cu3O7-x: new evidence for a vortex-glass phase, Phys. Rev. Lett., 1995, 75: 2578.［10］ Yeshurun, Y., Malozemoff, A. P., Shaulov, A. Et al., Magnetic relaxation in high temperature superconductors, Rev. Mod. Phys., 1996, 68: 911.［11］ Jin, H., Chen, L., Zhang, Y. H., Magnetic relaxation in high temperature superconductors, Phys. Lett. A, 1999, 255: 183.［12］ Yin, D., Schauer, W., Windte, V. Et al., A new understanding of the resistive state and V-I characteristics of high-Tc superconductors, Z. Phys. B, 1994, 94: 249.
Stability of UV Optical Coatings in Hostile Excimer Laser Environments
1986-06-15
2614. 22. L. I. Clvankiv, Soy . Phys. Solid State 17 (1974) 730. 23. V. T. Coon, Surf. Sci. 8 (197i) L42. - 24. J. Harris, B. Kasemo, and B...A. Namiot, and R. V. Khokhlov, -. Soy . Phys. JETP 43 (1976) 1226. 43. M. E. Umstead and M. C. Lin: J. Phys. Chem. 8_ (1978) 20477. 44. S. Tachi, K...6531. 82. M. L. Knotek and P. J. Feibelman, Phys. Rev. Lett. 40 (1978) 964. 83. R. P. Holmstrom, J. Lagowski, and H. C. Gatos , Surf. Sci. 7 (1978) L781
Modeling of Flowing Plasmas and Pulse Power Schemes for O2(1Delta) Production for Chemical Lasers
2008-01-19
Redistribution subject to AlP license or copyright, see http:l/jap.aip.org/jap/copyright.jsp 113306-11 Babaeva, Arakoni, and Kushner J. Appi . Phys. 99...Babaeva, and M. J. Kushner, J. Appl. ’W. E. McDermott, N R. Pchelkin, D. J. Benard. and R. R. Bousek, AppI . Phys. 98. 073304 (2t005). Phys. Lett. 32. 469...8217A. Elior, B. D. Barm,tsheniko, E. Lebiush, and S. Rosenwaks. AppI . Phys. Gas Flost and Chemical Las,ers and lligh Power Laser Conference tyro- B
Very High Performance Organic Photonic Devices
2008-01-15
warta,.w. Stehie, R.& Karl, N, Ultraput. high moability organic pluonocondluctors. Appi Phys. A36. cold weld. Finally, the strike layer between the...Roman, and 0. Inganas. J1. AppI . Phys. C. Silva. Phys. Rev. Lett. 92, 247402 (2004). 86. 487 (1999). 36T Offermans, P. A. van Hal, S. C. J. Meskers. M... AppI . Phys. 97. 103706 093502( (2005). (2005). 38K. L. Mutolo. E. 1. Mayo, B. P. Rand, S. R. Forre%t. and M. E. 27 . Riedel. J. Parisi. V. Dyakonov. L
Reynolds number effects on the single-mode Richtmyer-Meshkov instability
Walchli, B.; Thornber, B.
2017-01-01
The Reynolds number effects on the nonlinear growth rates of the Richtmyer-Meshkov instability are investigated using two-dimensional numerical simulations. A decrease in Reynolds number gives an increased time to reach nonlinear saturation, with Reynolds number effects only significant in the range RePhys. Rev. E 80, 055302 (2009), 10.1103/PhysRevE.80.055302]. Predicted amplitudes show reasonable agreement with the existing theory of Carles and Popinet [P. Carles and S. Popinet, Phys. Fluids Lett. 13, 1833 (2001), 10.1063/1.1377863; Eur. J. Mech. B 21, 511 (2002), 10.1016/S0997-7546(02)01199-8] and Mikaelian [K. O. Mikaelian, Phys. Rev. E 47, 375 (1993), 10.1103/PhysRevE.47.375; K. O. Mikaelian, Phys. Rev. E 87, 031003 (2013), 10.1103/PhysRevE.87.031003], with the former being the closest match to the current computations.
Nikolaev, G. N.
2017-04-01
In [JETP Lett. 105(3), 152 (2017)], a clear and comprehensive analysis of the paradoxical results of experiment [Phys. Rev. Lett. 111, 240402 (2013)] was carried out on the basis of the classical wave theory of light, which presupposes the continuity of possible of light paths. It was shown that the paradoxical results of the experiment are due not to the discontinuity of the trajectories of light, as claimed in [Phys. Rev. Lett. 111, 240402 (2013)], but to the used way of detecting the path of photons. The experiment modification proposed in [JETP Lett. 105(3), 152 (2017)] allows us to eliminate the seeming discontinuity of the light trajectories. In Comment [arXiv:1705.02137 (2017)] to the article such modification is declared unreasonable. This Response to the Comment shows that this statement is not based on clear and logical arguments. Instead, it is only asserted that the proposed modification "violates the faithfulness indication of the trace" of photons. Therefore, the Comment's criticism can not be considered as well-founded. Consequently, the conclusion of [JETP Lett. 105(3), 152 (2017)] that a new concept of disconnected trajectories proposed by the authors of work [Phys. Rev. Lett. 111, 240402 (2013)] is unnecessary, remains valid.
Series of (2+1)-dimensional stable self-dual interacting conformal field theories
Cheng, Meng; Xu, Cenke
2016-12-01
Using the duality between seemingly different (2+1)-dimensional [(2 +1 )d ] conformal field theories (CFT) proposed recently [D. T. Son, Phys. Rev. X 5, 031027 (2015), 10.1103/PhysRevX.5.031027; M. A. Metlitski and A. Vishwanath, Phys. Rev. B 93, 245151 (2016), 10.1103/PhysRevB.93.245151; C. Wang and T. Senthil, Phys. Rev. X 6, 011034 (2015), 10.1103/PhysRevX.6.011034; C. Wang and T. Senthil, Phys. Rev. X 5, 041031 (2015), 10.1103/PhysRevX.5.041031; C. Wang and T. Senthil, Phys. Rev. B 93, 085110 (2016), 10.1103/PhysRevB.93.085110; C. Xu and Y.-Z. You, Phys. Rev. B 92, 220416 (2015), 10.1103/PhysRevB.92.220416; D. F. Mross et al., Phys. Rev. Lett. 117, 016802 (2016), 10.1103/PhysRevLett.117.016802; A. Karch and D. Tong, arXiv:1606.01893; N. Seiberg et al., arXiv:1606.01989; P.-S. Hsin and N. Seiberg, arXiv:1607.07457], we study a series of (2 +1 )d stable self-dual interacting CFTs. These CFTs can be realized (for instance) on the boundary of the 3 d bosonic topological insulator protected by U(1) and time-reversal symmetry (T ), and they remain stable as long as these symmetries are preserved. When realized as a boundary system, these CFTs can be driven into anomalous fractional quantum Hall states once T is broken. We demonstrate that the newly proposed dualities allow us to study these CFTs quantitatively through a controlled calculation, without relying on a large flavor number of matter fields. We also propose a numerical test for our results, which would provide strong evidence for the originally proposed duality between Dirac fermion and QED.
Topological phase structure of entangled qudits
Khoury, A. Z.; Oxman, L. E.
2014-03-01
We discuss the appearance of fractional topological phases on cyclic evolutions of entangled qudits. The original result reported by Oxman and Khoury [Phys. Rev. Lett. 106, 240503 (2011), 10.1103/PhysRevLett.106.240503] is detailed and extended to qudits of different dimensions. The topological nature of the phase evolution and its restriction to fractional values are related to both the structure of the projective space of states and entanglement. For maximally entangled states of qudits with the same Hilbert-space dimension, the fractional geometric phases are the only ones attainable under local SU(d) operations, an effect that can be experimentally observed through conditional interference.
2007-05-01
fluoride and magnesium- silver alloy were thermally evaporated with an evaporation rate ratio of 10:1 to form a translucent cathode (10 nm). The schemes for...onto the transfer film and transferred to the substrate. A small molecular HTL, N,N’-diphenyl-N,N’-bis(1-naphthyl)-(1,1’-biphenyl)- 4,4’- diamine (α...Appl. Phys. Lett. 88, 113515 [14] Fan, S H, Villeneuve P R, Joannopoulos J D, and Schubert E F 1997 Phys. Rev. Lett. 78, 3294 [15] Schnitzer I
STIC: Development of a System of Nonlocally Interconnected Spin Qubits for Quantum Computation
2012-09-23
Taylor, W. Dür, P. Zoller, A. Yacoby, C. Marcus, M. Lukin. Solid-State Circuit for Spin Entanglement Generation and Purification, Physical Review Letters , (06...Triplet Qubit, Physical Review Letters , (10 2009): 160503. doi: 10.1103/PhysRevLett.103.160503 2012/09/04 08:13:52 16 D. J. Reilly, J. M. Taylor, J...Double Quantum Dot, Physical Review Letters , (07 2006): 0. doi: 10.1103/PhysRevLett.97.056801 2012/09/04 02:25:07 7 J. Taylor, J. Petta, A. Johnson, A
Structural interactions in ionic liquids linked to higher-order Poisson-Boltzmann equations.
Blossey, R; Maggs, A C; Podgornik, R
2017-06-01
We present a derivation of generalized Poisson-Boltzmann equations starting from classical theories of binary fluid mixtures, employing an approach based on the Legendre transform as recently applied to the case of local descriptions of the fluid free energy. Under specific symmetry assumptions, and in the linearized regime, the Poisson-Boltzmann equation reduces to a phenomenological equation introduced by Bazant et al. [Phys. Rev. Lett. 106, 046102 (2011)]PRLTAO0031-900710.1103/PhysRevLett.106.046102, whereby the structuring near the surface is determined by bulk coefficients.
Atomic carbon chains as spin-transmitters: An ab initio transport study
Fürst, Joachim Alexander; Brandbyge, Mads; Jauho, Antti-Pekka
2010-01-01
An atomic carbon chain joining two graphene flakes was recently realized in a ground-breaking experiment by Jin et al. (Phys. Rev. Lett., 102 (2009) 205501). We present ab initio results for the electron transport properties of such chains and demonstrate complete spin-polarization of the transmi......An atomic carbon chain joining two graphene flakes was recently realized in a ground-breaking experiment by Jin et al. (Phys. Rev. Lett., 102 (2009) 205501). We present ab initio results for the electron transport properties of such chains and demonstrate complete spin...
Fractional Feynman-Kac equation for non-brownian functionals.
Turgeman, Lior; Carmi, Shai; Barkai, Eli
2009-11-06
We derive backward and forward fractional Feynman-Kac equations for the distribution of functionals of the path of a particle undergoing anomalous diffusion. Fractional substantial derivatives introduced by Friedrich and co-workers [Phys. Rev. Lett. 96, 230601 (2006)10.1103/PhysRevLett.96.230601] provide the correct fractional framework for the problem. For applications, we calculate the distribution of occupation times in half space and show how the statistics of anomalous functionals is related to weak ergodicity breaking.
Ultra High Speed Single Electron Memory Devices based on Carbon Nanotube Quantum Dots
2011-04-25
Mauri, S. Piscanec, D. Jiang, K. S. Novoselov, S. Roth , and A. K. Geim, “Raman Spectrum of Graphene and Graphene Layers”, Phys. Rev. Lett. 97...2008). 17. M. Huang, H. Yan, C. Chen, D. Song, T. F. Heinz , and J. Hone, “Phonon softening and crystallographic orientation of strained graphene...graphene on SiO2” , Appl. Phys. Lett., 91, 41907, (2007). 23. Z. Chen, S. Berciaud, C. Nuckolls, T.F. Heinz , L.E. Brus, “Energy Transfer from Individual
Classical Field-Theoretical approach to the non-linear q-Klein-Gordon Equation
Plastino, A
2016-01-01
In the wake of efforts made in [EPL {\\bf 97}, 41001 (2012)], we extend them here by developing a classical field theory (FT)to the q-Klein-Gordon equation advanced in [Phys. Rev. Lett. {\\bf 106}, 140601 (2011)]. This makes it possible to generate a hipotetical conjecture regarding black matter. We also develop the classical field theory for a q-Schrodinger equation, different from the one in [EPL {\\bf 97}, 41001 (2012)], that was deduced in [Phys. Lett. A {\\bf 379}, 2690 (2015)] from the hypergeometric differential equation. Our two classical theories reduce to the usual quantum FT for $q\\rightarrow 1$.
Critical exponents of the classical Heisenberg ferromagnet
Holm, C; Holm, Christian; Janke, Wolfhard
1997-01-01
In a recent letter, R.G. Brown and M. Ciftan (Phys. Rev. Lett. 76, 1352, 1996) reported high precision Monte Carlo (MC) estimates of the static critical exponents of the classical 3D Heisenberg model, which stand in sharp contrast to values obtained by four independent approaches, namely by other recent high statistics MC simulations, high-temperature series analyses, field theoretical methods, and experimental studies. In reply to the above cited work we submitted this paper as a comment to Phys. Rev. Lett.
Controlling Atomic, Solid-State and Hybrid Systems for Quantum Information Processing
2013-09-04
photon level (Chang et al., 2007) remains a challenge. Here we theoretically analyze a cavity QED version ( Grangier et al., 1998; Imamoglu et al., 1997... Grangier et al., 1998) on the signal transition (η 1). 76 94 95 Chapter 5: All-Optical Switch and Transistor Gated by One Photon A B Gate (Free...Fleischhauer, T. Pohl, and Mikhail D. Lukin. Phys. Rev. Lett., 107:133602, 2011. P. Grangier , D. F. Walls, and K. M. Gheri. Phys. Rev. Lett., 81:2833, 1998
Four-state continuous-variable quantum key distribution with long secure distance
Yang, Jian; Xu, Bingjie; Peng, Xiang; Guo, Hong
2012-05-01
The four-state continuous-variable quantum key distribution protocol has a long practical secure distance [A. Leverrier and P. Grangier, Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.102.180504 102, 180504 (2009)], while it poses the difficulty of parameter estimation. We propose an improved four-state protocol where the covariance matrix can be estimated from experimental data without using the linear channel assumption, thus ensuring its unconditional security in the asymptotical limit. Our scheme maintains the advantage of high reconciliation efficiency of the four-state protocol, which ensures long practical secure distance its. Our scheme can be implemented with the current technology.
Rotational Spectroscopy Unveils Eleven Conformers of Adrenaline
Cabezas, C.; Cortijo, V.; Mata, S.; Lopez, J. C.; Alonso, J. L.
2013-06-01
Recent improvements in our LA-MB-FTMW instrumentation have allowed the characterization of eleven and eight conformers for the neurotransmitters adrenaline and noradrenaline respectively. The observation of this rich conformational behavior is in accordance with the recent observation of seven conformers for dopamine and in sharp contrast with the conformational reduction proposed for catecholamines. C. Cabezas, I. Peña, J. C. López, J. L. Alonso J. Phys. Chem. Lett. 2013, 4, 486. H. Mitsuda, M. Miyazaki, I. B. Nielsen, P. Carcabal,C. Dedonder, C. Jouvet, S. Ishiuchi, M. Fujii J. Phys. Chem. Lett. 2010, 1, 1130.
New holographic scalar field models of dark energy in non-flat universe
Karami, K., E-mail: KKarami@uok.ac.i [Department of Physics, University of Kurdistan, Pasdaran St., Sanandaj (Iran, Islamic Republic of); Research Institute for Astronomy and Astrophysics of Maragha (RIAAM), Maragha (Iran, Islamic Republic of); Fehri, J. [Department of Physics, University of Kurdistan, Pasdaran St., Sanandaj (Iran, Islamic Republic of)
2010-02-08
Motivated by the work of Granda and Oliveros [L.N. Granda, A. Oliveros, Phys. Lett. B 671 (2009) 199], we generalize their work to the non-flat case. We study the correspondence between the quintessence, tachyon, K-essence and dilaton scalar field models with the new holographic dark energy model in the non-flat FRW universe. We reconstruct the potentials and the dynamics for these scalar field models, which describe accelerated expansion of the universe. In the limiting case of a flat universe, i.e. k=0, all results given in [L.N. Granda, A. Oliveros, Phys. Lett. B 671 (2009) 199] are obtained.
Joint measurability and temporal steering [Invited
Karthik, H. S.; Prabhu Tej, J.; Usha Devi, A. R.; Rajagopal, A. K.
2015-04-01
Quintino et. al. (Phys. Rev. Lett. 113, 160402 (2014)) and Uola et. al. (Phys. Rev. Lett. 113, 160403 (2014)) have recently established an intrinsic relation between non-joint measurability and Einstein-Podolsky- Rosen steering. They showed that a set of measurements is incompatible (i.e., not jointly measurable) if and only if it can be used for the demonstration of steering. In this paper, we prove the temporal analog of this result viz., a set of measurements are incompatible if and only if it exhibits temporal steering.
Joint Measurability and Temporal Steering
Karthik, H. S.; Tej, J Prabhu; Devi, A. R. Usha; Rajagopal, A. K.
2014-01-01
Quintino et. al. (Phys. Rev. Lett. 113, 160402 (2014)) and Uola et. al. (Phys. Rev. Lett. 113, 160403 (2014)) have recently established an intrinsic relation between non-joint measurability and Einstein-Podolsky- Rosen steering. They showed that a set of measurements is incompatible (i.e., not jointly measurable) if and only if it can be used for the demonstration of steering. In this paper, we prove the temporal analog of this result viz., a set of measurements are incompatible if and only i...
Romanenko, A
2014-01-01
In a recent publication [Appl. Phys. Lett. 104, 092601 (2014)] Ciovati et al. claim that: 1) thermal effects were disregarded in our original work [*]; 2) increase of $Q$ at $T=2$ K up to about $B\\sim$100 mT in nitrogen doped cavities is just an extended low field $Q$ slope observed in non-doped cavities, which is furthermore attributed to the decrease of the "BCS" component of surface resistance. Here we show that both claims are wrong and the conclusions of Ciovati et al. are incorrect. [*] A. Romanenko and A. Grassellino, Appl. Phys. Lett. 102, 252603 (2013)
Nonlinear Dynamical Control of Lasers
1993-10-30
chaos and strange attractors," Reviews of Modem Physics, 57, 617 (1985). I I I 48. E. Ott, C. Grebogi , and J.A. Yorke, in Chaos. ed. D.K Campbell...American Institute of Physics, New York, 1990, pp. 153-172. I 49. E. Ott, C. Grebogi , and J.A. Yorke, Phys. Rev. Lett. 64, 1196 (1990). 50. Troy...shinbrot, Edward Ott, Celso Grebogi , and James A. Yorke, ’Using Chaos to Direct Trajectories to Targets,’ Phys., Rev. Lett. 65, 3215 (1990). i 51. J. Singer
Observation of Defect-Free Surface Modes in Optical Waveguide Arrays
Szameit, Alexander; Garanovich, Ivan L.; Heinrich, Matthias; Sukhorukov, Andrey A.; Dreisow, Felix; Pertsch, Thomas; Nolte, Stefan; Tünnermann, Andreas; Kivshar, Yuri S.
2008-11-01
We report on the experimental observation of novel defect-free surface modes predicted theoretically for modulated photonic lattices [I. L. Garanovich et al., Phys. Rev. Lett. 100, 203904 (2008)PRLTAO0031-900710.1103/PhysRevLett.100.203904]. We generate the linear surface modes in truncated arrays of periodically curved optical waveguides created in fused silica by a laser direct-writing technique. Our results demonstrate that the degree of surface wave localization can be controlled by selecting the waveguide bending amplitude.
Namiki, Ryo; Jiang, Liang; Kim, Jungsang; Lütkenhaus, Norbert
2016-11-01
We investigate a quantum repeater scheme for quantum key distribution based on the work by S. Muralidharan et al. [Phys. Rev. Lett. 112, 250501 (2014)], 10.1103/PhysRevLett.112.250501. Our scheme extends that work by making use of error syndrome measurement outcomes available at the repeater stations. We show how to calculate the secret key rates for the case of optimizing the syndrome information, while the known key rate is based on a scenario of coarse graining the syndrome information. We show that these key rates can surpass the Pirandola-Laurenza-Ottaviani-Banchi bound on secret key rates of direct transmission over lossy bosonic channels.
Development of 1.0- to 1.4-Micrometer Heterojunction LEDs.
1980-04-01
EMITTING LEDs Both Marcuse [101 and Botez and Ettenberg 111] have concluded that under most conditions, notably for high data rates and low NA fibers...Remove SiO2 on n-side leaving 200-pm SiO2 dots. 10. D. Marcuse , IEEE J. Quantum Electron. QE-13, 819 (1977). 11. D. Botez and M. Ettenberg, (J. Quantum...Zamerowski Appl. Phys. Lett. 29, 807 (1976). 9. G. H. Olsen, C. J. Nuese, and M. Ettenberg, Appl. Phys. Lett. 34, 252 (1979). 10. D. Marcuse , IEEE J
Aharonov-Casher and Scalar Aharonov-Bohm Topological Effects
Dulat, Sayipjamal; Ma, Kai
2012-02-01
We reexamine the topological and nonlocal natures of the Aharonov-Casher and scalar Aharonov-Bohm phase effects. The underlying U(1) gauge structure is exhibited explicitly. And the conditions for developing topological Aharonov-Casher and scalar Aharonov-Bohm phases are clarified. We analyze the arguments of M. Peshkin and H. J. Lipkin [Phys. Rev. Lett. 74, 2847 (1995)PRLTAO0031-900710.1103/PhysRevLett.74.2847] in detail and show that they are based on the wrong Hamiltonian which yields their conclusion incorrect.
Comment on "Aharonov-Casher and Scalar Aharonov-Bohm Topological Effects"
Choi, Taeseung; Cho, Sam Young
2014-04-01
In this Comment we point out (i) that the Hamiltonian, Eq. (17) in the Letter(Phys. Rev. Lett. 108, 070405 (2012)), is not a relativistic Hamiltonian, (ii) then that the conditions in the Letter are irrelevant for a topological AC and SAB effects, and (iii) conclusively that the non-relativistic Hamiltonian employed by Peshkin and Lipkin (Phys. Rev. Lett. 74, 2847 (1995)) has the same $U(1)_{mm}$ gauge structure for a fixed spin and then is not wrong, but their incorrect interpretation of the spin autocorrelations led to the incorrect conclusion.
Kelkkanen, Kari André; Lundqvist, Bengt; Nørskov, Jens Kehlet
2011-01-01
The ubiquitous van der Waals (vdW) force, particularly discernible in weak adsorption, is studied on noble and transition metals. In calculations with the vdW density functional (DF) [ M. Dion et al., Phys. Rev. Lett. 92, 246401 (2004)], the atomic structure near the adsorption site is systematic......The ubiquitous van der Waals (vdW) force, particularly discernible in weak adsorption, is studied on noble and transition metals. In calculations with the vdW density functional (DF) [ M. Dion et al., Phys. Rev. Lett. 92, 246401 (2004)], the atomic structure near the adsorption site...
1980-01-01
Bostick, Appl. Phys. Lett. 35, 296 (1979). 3. S. Humphries, R.N. Sudan, and IV. Condit, Appl. Phys. Lett. 26, 667 (1975). 4. D.S. Prono , J.M. Creedon, I...and to provide a good ion depenently by Creedon, Smith, and Prono ." In both source at the second anode A2. The ion flux from the of these approaches...and Ion Beam Research and Technology, (Ith- Let. 37, 1236 (1977). ac, New York,1977), Vol. 11, p. 819. 72. D. S. Prono , J. W. Shearer, and X J. Briggs
Analytical Study of Beam Handling and Emittance Control
1993-12-01
Martin, D. S. Prono , and A. G. Cole, Phys. Rev. Lett. §7., 1591 (1986). I18. J. L. Miller, "High Power Induction Free-Electron Laser," Proc. SPIE, High...1226, 447 (1990). 20. R. J. Briggs, et al., IEEE Trans. NS-28 3360 (1981). I 21. D. S. Prono , ’"ecent Progress of the Advanced Test Accelerator," IEEE...fa (4), 997 (1988). I 3. Y. Y. Lau, Phys. Rev. Lett. & 1141 (1989). n 4. G. J. Caporaso, F. Rainer, W. E. Martin, D. S. Prono , and A. G. Cole, "Laser
Land, K
2011-09-01
Full Text Available . Phys. Lett. 99, 143703 (2011) Bio-inspired artificial iridophores based on capillary origami: Fabrication and device characterization Appl. Phys. Lett. 99, 144102 (2011) Three-dimensional cellular focusing utilizing a combination of insulator.... Nano- fluid. 3, 1, (2007). 7P. K. Yuen, Lab Chip 8, 1374 (2008). 8S. M. Langelier, E. Livak-Dahl, A. J. Manzo, B. N. Johnson, N. G. Walter, and M. A.Burns, Lab Chip 11, 1679 (2011). 9K. A. Shaikh, K. S. Ryu, E. D. Goluch, J.-M. Nam, J. Liu, C. Shad...
Finite precision measurement does not nullify the Kochen-Specker theorem
Cabello, A
2002-01-01
It is proven that any hidden variable theory of the type proposed by Meyer [Phys. Rev. Lett. 83, 3751 (1999)], Kent [Phys. Rev. Lett. 83, 3755 (1999)], and Clifton and Kent [Proc. R. Soc. Lond. A 456, 2101 (2000)] leads to experimentally testable predictions which are in contradiction with those of quantum mechanics. Therefore, it is argued that the existence of dense Kochen-Specker-colorable sets must not be interpreted as a nullification of the physical impact of the Kochen-Specker theorem once the finite precision of real measurements is taken into account.
Cellular ability to sense spatial gradients in the presence of multiple competitive ligands
Liou, Shu-Hao; Chen, Chia-Chu
2012-01-01
Many eukaryotic and prokaryotic cells can exhibit remarkable sensing ability under small gradients of chemical compounds. In this study, we approach this phenomenon by considering the contribution of multiple ligands to the chemical kinetics within the Michaelis-Menten model. This work was inspired by the recent theoretical findings of Hu [Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.105.048104 105, 048104 (2010)]. Our treatment with practical binding energies and chemical potentials provides results that are consistent with experimental observations.
Testing Hardy's nonlocality proof with genuine energy-time entanglement
Vallone, Giuseppe; Gianani, Ilaria; Inostroza, Enrique B.; Saavedra, Carlos; Lima, Gustavo; Cabello, Adán; Mataloni, Paolo
2011-04-01
We show two experimental realizations of Hardy’s ladder test of quantum nonlocality using energy-time correlated photons, following the scheme proposed by Cabello [Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.102.040401 102, 040401 (2009)]. Unlike previous energy-time Bell experiments, these tests require precisely tailored nonmaximally entangled states. One of them is equivalent to the two-setting and two-outcome Bell test requiring a minimum detection efficiency. The reported experiments are still affected by the locality and detection loopholes, but are free of the post-selection loophole of previous energy-time and time-bin Bell tests.
Experimental Test of Quantum Contextuality in Neutron Interferometry
Bartosik, H.; Klepp, J.; Schmitzer, C.; Sponar, S.; Cabello, A.; Rauch, H.; Hasegawa, Y.
2009-07-01
We performed an experimental test of the Kochen-Specker theorem based on an inequality derived from the Peres-Mermin proof, using spin-path (momentum) entanglement in a single neutron system. Following the strategy proposed by Cabello et al. [Phys. Rev. Lett. 100, 130404 (2008)PRLTAO0031-900710.1103/PhysRevLett.100.130404], a Bell-like state was generated, and three expectation values were determined. The observed violation 2.291±0.008≰1 clearly shows that quantum mechanical predictions cannot be reproduced by noncontextual hidden-variable theories.
2014-09-26
Diadiuk, M.C. Plonko. and D.L. Hovey (to be published in AppI . Phys. Lett., January 1985). 3. CA-f. Cox. III (unpublished). 4. D. Yap and L.M. Johnson... AppI . Opt. 23. 2991 (1984). 5. L.M. Johnson and D. Yap. AppI . Opt. 23. 2988 (1984). 6. Solid State Research Report. Lincoln Laboratory, M.I.T. (1983...drift current. 21. A. Carenco, L. Menegaux, and N.T. Lenh, Appi . Phys. Lett. 40, 653 (1982). 22. F.J. Leonberger, J.P. Donnelly, and C.O. Bozler
Strictly nonclassical behavior of a mesoscopic system
Hu, Jiazhong; Vendeiro, Zachary; Chen, Wenlan; Zhang, Hao; McConnell, Robert; Sørensen, Anders S.; Vuletić, Vladan
2017-03-01
We experimentally demonstrate the strictly nonclassical behavior in a many-atom system using a recently derived criterion [E. Kot et al., Phys. Rev. Lett. 108, 233601 (2012), 10.1103/PhysRevLett.108.233601] that explicitly does not make use of quantum mechanics. We thereby show that the magnetic-moment distribution measured by McConnell et al. [Nature (London) 519, 439 (2015), 10.1038/nature14293] in a system with a total mass of 2.6 ×105 atomic mass units is inconsistent with classical physics. Notably, the strictly nonclassical behavior affects an area in phase space 103 times larger than the Planck quantum ℏ .
An experimental demonstration of single photon nonlocality
Hessmo, B; Heydari, H; Björk, G; Hessmo, Bj\\"orn; Usachev, Pavel; Heydari, Hoshang; Bj\\"ork, Gunnar
2003-01-01
In this letter we experimentally implement a single photon Bell test based on the ideas of S. Tan et al. [Phys. Rev. Lett., vol. 66, 252 (1991)] and L. Hardy [Phys. Rev. Lett.,vol. 73, 2279 (1994)]. A double heterodyne measurement is used to measure correlations in the Fock space spanned by zero and one photons. Local oscillators used in the correlation measurement are distributed to two observers by co-propagating it in an orthogonal polarization mode. This method eliminates the need for interferometrical stability in the setup, consequently making it a robust and scalable method.
Infinite randomness fixed point of the superconductor-metal quantum phase transition.
Del Maestro, Adrian; Rosenow, Bernd; Müller, Markus; Sachdev, Subir
2008-07-18
We examine the influence of quenched disorder on the superconductor-metal transition, as described by a theory of overdamped Cooper pairs which repel each other. The self-consistent pairing eigenmodes of a quasi-one-dimensional wire are determined numerically. Our results support the recent proposal by Hoyos et al. [Phys. Rev. Lett. 99, 230601 (2007)10.1103/PhysRevLett.99.230601] that the transition is characterized by the same strong-disorder fixed point describing the onset of ferromagnetism in the random quantum Ising chain in a transverse field.
Swallows, M. D.; Loftus, T. H.; Griffith, W. C.; Heckel, B. R.; Fortson, E. N.; Romalis, M. V.
2013-01-01
We discuss in detail the search for a permanent electric dipole moment (EDM) of the 199Hg atom reported by Griffith [Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.102.101601 102, 101601 (2009)]. The upper bound, d(199Hg)EDM limit for 199Hg, provides the most sensitive probe to date for EDMs in diamagnetic atoms, and sets new limits on time-reversal symmetry violation in extensions to the standard model. This paper provides extensive discussion of the techniques used to search for the 199Hg EDM and the implications of the new 199Hg EDM limit for CP violation in elementary particle interactions.
Modulation Effects in Multi-Section Semiconductor Lasers (Postprint)
2013-01-01
semiconductor lasers based on quantum well gain lever,” Appl. Phys. Lett., 59, 2216–2218 (1991). [33] C. P. Seltzer , L. D. Westbrook, and H. J. Wickes...Improved signal-to-noise ratio in gain-levered InGaAsP/InP MQW lasers,” Electron. Lett., 29, 230–231 (1993). [34] L. D. Westbrook and C. P. Seltzer ...Electron. Lett., 30, 37–39 (1994). [37] C. P. Seltzer , L. D. Westbrook, and H. J. Wickes, “The “gain-lever” effect in InGaAsP/InP multiple quantum well
Precision measurements with atom interferometry
Schubert, Christian; Abend, Sven; Schlippert, Dennis; Ertmer, Wolfgang; Rasel, Ernst M.
2017-04-01
Interferometry with matter waves enables precise measurements of rotations, accelerations, and differential accelerations [1-5]. This is exploited for determining fundamental constants [2], in fundamental science as e.g. testing the universality of free fall [3], and is applied for gravimetry [4], and gravity gradiometry [2,5]. At the Institut für Quantenoptik in Hannover, different approaches are pursued. A large scale device is designed and currently being set up to investigate the gain in precision for gravimetry, gradiometry, and fundamental tests on large baselines [6]. For field applications, a compact and transportable device is being developed. Its key feature is an atom chip source providing a collimated high flux of atoms which is expected to mitigate systematic uncertainties [7,8]. The atom chip technology and miniaturization benefits from microgravity experiments in the drop tower in Bremen and sounding rocket experiments [8,9] which act as pathfinders for space borne operation [10]. This contribution will report about our recent results. The presented work is supported by the CRC 1227 DQ-mat, the CRC 1128 geo-Q, the RTG 1729, the QUEST-LFS, and by the German Space Agency (DLR) with funds provided by the Federal Ministry of Economic Affairs and Energy (BMWi) due to an enactment of the German Bundestag under Grant No. DLR 50WM1552-1557. [1] P. Berg et al., Phys. Rev. Lett., 114, 063002, 2015; I. Dutta et al., Phys. Rev. Lett., 116, 183003, 2016. [2] J. B. Fixler et al., Science 315, 74 (2007); G. Rosi et al., Nature 510, 518, 2014. [3] D. Schlippert et al., Phys. Rev. Lett., 112, 203002, 2014. [4] A. Peters et al., Nature 400, 849, 1999; A. Louchet-Chauvet et al., New J. Phys. 13, 065026, 2011; C. Freier et al., J. of Phys.: Conf. Series 723, 012050, 2016. [5] J. M. McGuirk et al., Phys. Rev. A 65, 033608, 2002; P. Asenbaum et al., arXiv:1610.03832. [6] J. Hartwig et al., New J. Phys. 17, 035011, 2015. [7] H. Ahlers et al., Phys. Rev. Lett. 116, 173601
The effects of the N atom collective Lamb shift on single photon superradiance
Scully, Marlan O.; Svidzinsky, Anatoly A.
2009-03-01
The problem of single photon collective spontaneous emission, a.k.a. superradiance, from N atoms prepared by a single photon pulse of wave vector k has been the subject of recent interest. It has been shown that a single photon absorbed uniformly by the N atoms will be followed by spontaneous emission in the same direction [M. Scully, E. Fry, C.H.R. Ooi, K. Wodkiewicz, Phys. Rev. Lett. 96 (2006) 010501; M. Scully, Laser Phys. 17 (2007) 635]; and in extensions of this work we have found a new kind of cavity QED in which the atomic cloud acts as a cavity containing the photon [A.A. Svidzinsky, J.T. Chang, M.O. Scully, Phys. Rev. Lett. 100 (2008) 160504]. In most of our studies, we have neglected virtual photon (“Lamb shift”) contributions. However, in a recent interesting paper, Friedberg and Mannassah [R. Friedberg, J.T. Manassah, Phys. Lett. A 372 (2008) 2514] study the effect of virtual photons investigating ways in which such effects can modify the time dependence and angular distributions of collective single photon emission. In the present Letter, we show that such virtual transitions play no essential role in our problem. The conclusions of [M. Scully, E. Fry, C.H.R. Ooi, K. Wodkiewicz, Phys. Rev. Lett. 96 (2006) 010501; M. Scully, Laser Phys. 17 (2007) 635; A.A. Svidzinsky, J.T. Chang, M.O. Scully, Phys. Rev. Lett. 100 (2008) 160504] stand as published. However, the N atom Lamb shift is an interesting problem in its own right and we here extend previous work both analytically and numerically.
The effects of the N atom collective Lamb shift on single photon superradiance
Scully, Marlan O. [Institute for Quantum Studies and Department of Physics, Texas A and M University, College Station, TX 77843 (United States); Applied Physics and Materials Science Group, Engineering Quad, Princeton University, Princeton, NJ 08544 (United States); Svidzinsky, Anatoly A. [Institute for Quantum Studies and Department of Physics, Texas A and M University, College Station, TX 77843 (United States); Applied Physics and Materials Science Group, Engineering Quad, Princeton University, Princeton, NJ 08544 (United States)], E-mail: asvid@jewel.tamu.edu
2009-03-23
The problem of single photon collective spontaneous emission, a.k.a. superradiance, from N atoms prepared by a single photon pulse of wave vector k{sub 0} has been the subject of recent interest. It has been shown that a single photon absorbed uniformly by the N atoms will be followed by spontaneous emission in the same direction [M. Scully, E. Fry, C.H.R. Ooi, K. Wodkiewicz, Phys. Rev. Lett. 96 (2006) 010501; M. Scully, Laser Phys. 17 (2007) 635]; and in extensions of this work we have found a new kind of cavity QED in which the atomic cloud acts as a cavity containing the photon [A.A. Svidzinsky, J.T. Chang, M.O. Scully, Phys. Rev. Lett. 100 (2008) 160504]. In most of our studies, we have neglected virtual photon ('Lamb shift') contributions. However, in a recent interesting paper, Friedberg and Mannassah [R. Friedberg, J.T. Manassah, Phys. Lett. A 372 (2008) 2514] study the effect of virtual photons investigating ways in which such effects can modify the time dependence and angular distributions of collective single photon emission. In the present Letter, we show that such virtual transitions play no essential role in our problem. The conclusions of [M. Scully, E. Fry, C.H.R. Ooi, K. Wodkiewicz, Phys. Rev. Lett. 96 (2006) 010501; M. Scully, Laser Phys. 17 (2007) 635; A.A. Svidzinsky, J.T. Chang, M.O. Scully, Phys. Rev. Lett. 100 (2008) 160504] stand as published. However, the N atom Lamb shift is an interesting problem in its own right and we here extend previous work both analytically and numerically.
Edge reconstructions in fractional quantum Hall systems.
Joglekar, Yogesh; Nguyen, Hoang; Murthy, Ganpathy
2003-03-01
Two dimensional electron systems exhibiting fractional quantum Hall effects are characterized by a quantized Hall conductance and a dissipationless bulk. The transport in these systems occurs only at the edges where gapless excitations are possible [1]. We present a microscopic calculation of these egde-states at filling factors ν=1/3 and ν=2/5 using the Hamiltonian theory of the fractional quantum Hall effect [2]. We find that the quantum Hall egde undergoes a reconstruction as the confining potential, produced by the background charge density, softens [3,4]. Our results have implications to the tunneling experiments into the edge of a fractional quantum Hall system [5]. 1: X. G.Wen, Phys. Rev. Lett. 64, 2206 (1990). 2: R. Shankar and G. Murthy, Phys. Rev. Lett. 79, 4437 (1997). 3: C. de C. Chamon and X. G. Wen, Phys. Rev. B 49, 8227 (1994). 4: X. Wan, K. Yang, and E. H. Razayi, Phys. Rev. Lett. 88, 056802 (2002). 5: A.M.Chang et al., Phys. Rev. Lett. 86, 143 (2000).
FAST TRACK COMMUNICATION: Quantum chaos on discrete graphs
Smilansky, Uzy
2007-07-01
Adapting a method developed for the study of quantum chaos on quantum (metric) graphs (Kottos and Smilansky 1997 Phys. Rev. Lett. 79 4794, Kottos and Smilansky 1999 Ann. Phys., NY 274 76), spectral ζ functions and trace formulae for discrete Laplacians on graphs are derived. This is achieved by expressing the spectral secular equation in terms of the periodic orbits of the graph and obtaining functions which belong to the class of ζ functions proposed originally by Ihara (1966 J. Mat. Soc. Japan 18 219) and expanded by subsequent authors (Stark and Terras 1996 Adv. Math. 121 124, Kotani and Sunada 2000 J. Math. Sci. Univ. Tokyo 7 7). Finally, a model of 'classical dynamics' on the discrete graph is proposed. It is analogous to the corresponding classical dynamics derived for quantum graphs (Kottos and Smilansky 1997 Phys. Rev. Lett. 79 4794, Kottos and Smilansky 1999 Ann. Phys., NY 274 76).
Spatially anisotropic Heisenberg kagome antiferromagnet
Apel, W.; Yavors'kii, T.; Everts, H.-U.
2007-04-01
In the search for spin-1/2 kagome antiferromagnets, the mineral volborthite has recently been the subject of experimental studies (Hiroi et al 2001 J. Phys. Soc. Japan 70 3377; Fukaya et al 2003 Phys. Rev. Lett. 91 207603; Bert et al 2004 J. Phys.: Condens. Matter 16 S829; Bert et al 2005 Phys. Rev. Lett. 95 087203). It has been suggested that the magnetic properties of this material are described by a spin-1/2 Heisenberg model on the kagome lattice with spatially anisotropic exchange couplings. We report on investigations of the {\\mathrm {Sp}}(\\mathcal {N}) symmetric generalization of this model in the large \\mathcal {N} limit. We obtain a detailed description of the dependence of possible ground states on the anisotropy and on the spin length S. A fairly rich phase diagram with a ferrimagnetic phase, incommensurate phases with and without long-range order and a decoupled chain phase emerges.
Analysis of photon count data from single-molecule fluorescence experiments
Burzykowski, T.; Szubiakowski, J.; Ryden, T
2003-03-15
We consider single-molecule fluorescence experiments with data in the form of counts of photons registered over multiple time-intervals. Based on the observation schemes, linking back to works by Dehmelt [Bull. Am. Phys. Soc. 20 (1975) 60] and Cook and Kimble [Phys. Rev. Lett. 54 (1985) 1023], we propose an analytical approach to the data based on the theory of Markov-modulated Poisson processes (MMPP). In particular, we consider maximum-likelihood estimation. The method is illustrated using a real-life dataset. Additionally, the properties of the proposed method are investigated through simulations and compared to two other approaches developed by Yip et al. [J. Phys. Chem. A 102 (1998) 7564] and Molski [Chem. Phys. Lett. 324 (2000) 301].
Comment on "Generalized exclusion processes: Transport coefficients"
Becker, T.; Nelissen, K.; Cleuren, B.; Partoens, B.; Van den Broeck, C.
2016-04-01
In a recent paper, Arita et al. [Phys. Rev. E 90, 052108 (2014), 10.1103/PhysRevE.90.052108] consider the transport properties of a class of generalized exclusion processes. Analytical expressions for the transport-diffusion coefficient are derived by ignoring correlations. It is claimed that these expressions become exact in the hydrodynamic limit. In this Comment, we point out that (i) the influence of correlations upon the diffusion does not vanish in the hydrodynamic limit, and (ii) the expressions for the self- and transport diffusion derived by Arita et al. are special cases of results derived in Becker et al. [Phys. Rev. Lett. 111, 110601 (2013), 10.1103/PhysRevLett.111.110601].
Analysis of the giant spin Hall effect in Cu(Bi) alloys
Fedorov, Dmitry V.; Herschbach, Christian; Johansson, Annika; Ostanin, Sergey; Mertig, Ingrid; Gradhand, Martin; Chadova, Kristina; Ködderitzsch, Diemo; Ebert, Hubert
2013-08-01
Two years after the prediction of a giant spin Hall effect for the dilute Cu(Bi) alloy [Gradhand , Phys. Rev. BPRBMDO1098-012110.1103/PhysRevB.81.245109 81, 245109 (2010)], a comparably strong effect was measured in thin films of Cu(Bi) alloys by Niimi [Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.109.156602 109, 156602 (2012)]. Both theory and experiment consider the skew-scattering mechanism to be responsible, however they obtain opposite sign for the spin Hall angle. Based on a detailed analysis of the obtained theoretical results, we propose that either the formation of extremely small clusters or the influence of interface roughness and grain boundaries decorated with Bi atoms are responsible for the observed phenomenon.
Exact path integral for 3D higher spin gravity
Honda, Masazumi; Iizuka, Norihiro; Tanaka, Akinori; Terashima, Seiji
2017-02-01
Extending the works of [Phys. Rev. Lett. 115, 161304 (2015), 10.1103/PhysRevLett.115.161304] and [Phys. Rev. D 93, 064014 (2016), 10.1103/PhysRevD.93.064014], we study three dimensional Euclidean higher spin gravity with negative cosmological constant. This theory can be formulated in terms of S L (N ,C ) Chern-Simons theory. By introducing auxiliary fields, we rewrite it in a supersymmetric way and compute its partition function exactly by using the localization method. We obtain a good expression for the partition function in terms of characters for the vacuum and primaries in 2D unitary conformal field theory with WN symmetry. We also check that the coefficients of the character expansion are positive integers and exhibit Cardy formula in the large central charge limit.
Eigenvalue solution to the electron-collisional effect on ion-acoustic and entropy waves
ZHENG; Jian
2001-01-01
［1］Braginskii,S.I.,Transport processes in a plasma,in Reviews of Plasma Physics,Vol.1,New York:Consultants Bureau,1965,205-311.［2］Ono,M.,Kulsrud,R.M.,Frequency and damping of ion acoustic waves,Phys.Fluids,1975,18(10):1287-1293.［3］Randall,C.J.,Effect of ion collisionality on ion-acoustic waves,Phys.Fluids,1982,25(12):2231-2233.［4］Tracy,M.D.,Williams,E.A.,Estabrook,K.G.et al.,Eigenvalue solution for the ion-collisional effects on ion-acoustic and entropy waves,Phys.Fluids,1993,B5(5):1430.［5］Bell,A.R.,Electron energy transport in ion waves and its relevance to laser produced plasmas,Phys.Fluids,1983,26(1):279-284.［6］Epperlein,E.M.,Short,R.W.,Simon,A.,Damping of ion-acoustic waves in the presence of electron-ion collisions,Phys.Rev.Lett.,1992,69(12):1765-1768.［7］Epperlein,E.M.,Effect of electron collisions on ion-acoustic waves and heat flow,Phys.Plasmas,1994,1(1):109-115.［8］Bychenkov,V.Y.,Myatt,J.,Rozmus,W.et al.,Quasihydrodynamic description of ion acoustic waves in a collisional plasmas,Phys.Plasmas,1994,1(8):2419-2429.［9］Bychenkov,V.Y.,Myatt,J.,Rozmus,W.et al.,Ion acoustic waves in plasmas with collisional electrons,Phys.Rev.E,1994,50(6):5134-5137.［10］Bychenkov,V.Y.,Rozmus,W.,Tikhonchuk,V.T.et al.,Nonlocal electron transport in a plasma,Phys.Rev.Lett.,1995,75(24):4405-4408.［11］Zhang,Y.Q.et al.,Density fluctuation spectra of a collision-dominated plasma measured by light scattering,Phys.Rev.Lett.,1989,62(16):1848-1851.［12］Hinton,F.L.,Collisional transport in plasma,in Handbook of Plasma Physics,Vol.1,Amsterdam:North-Holland,1983,147-199.［13］Zheng Jian,Yu Changxuan,A numerical approach to the frequencies and damping rates of ion-acoustic waves in ion-collisional plasmas,Chin.Phys.Lett.,1999,16(12):905-907.［14］Hammett,G.W.,Perkins,F.,Fluid moment models for Landau damping with application to the ion-temperature-gradient instability,Phys.Rev.Lett.,1990,64(25):3019-3022.
High-Power, High-Intensity Laser Propagation and Interactions
2014-03-10
Krushelnick, A.Ting, C.I. Moore, H. R. Burris, E. Esarey, P. Sprangle and M. Baine, Phys. Rev. Lett. 78, 4047 (1997). 71. Y. Ehrlich , C. Cohen, D...R. Burris, Y. Ehrlich , R. Hubbard and P. Sprangle, Phys. Rev. E 59, R4769 (1999). 73. A.B. Borisov, A.V. Borovskiy, O.B. Shiryaev, V.V. Korobkin A
2013-05-22
B. Deveaud-Plèdran, N. Grandjean, and S. F. Chichibu, Jpn. J. Appl. Phys. 50, 111002 (2011). [15] Y. Ishikawa , M. Tashiro, K. Hazu, K. Furusawa, H...Namita, S. Nagao, K. Fujito, and S. F. Chichibu, Appl. Phys. Lett. 101, 212106 (2012). [16] S. F. Chichibu, Y. Ishikawa , M. Tashiro, K. Hazu, K...10 ps. Fig. 8 Schematic diagram of the rear-excitation configuration STRCL measurement system. The wavelength and repetition rate of the
Theoretical Studies of Ion-Molecule and Ion-Surface Collisions
2009-12-07
diagonal correction and Born-Huang adiabatic potential energy surfaces for isotopomers of H3, Steven L. Mielke , David W. Schwenke, George C. Schatz...Chem. C 2007, 111, 18099- 18111. (42) Mielke , S. L.; Zhang, S.; Khare, R.; Ruoff, R. S.; Belytschko, T.; Schatz, G. C. Chem. Phys. Lett. 2007, 446...128-132. (43) Mielke , S. L.; Belytschko, T.; Schatz, G. C. Ann. Rev. Phys. Chem. 2007, 58, 185- 209. (44) Khare, R.; Mielke , S. L.; Paci, J. T
1981-07-01
Taylor et al., 1978) and EELS (Thiel et al., 1979; Baro and Ibach, 1979), which provide information about the geometry of the adsorption sites and...Che-a. Phys. 72, 3686. Baranauskas, V., Mainmana, C. I. Z., Klinger, R. E., and Greene, J. E. (1980) Appl. Phys. Lett. 36, 930. Baro , A. M. and Ibach...Pennsylvania State University Dr. Martin Fleischmann Chemistry Department Department of Chemistry University Park, Pennsylvania 16802 Southampton
Physics and Chemistry of MW Discharge in Gas Flows
2007-11-02
Imhof R.E., Read F.H. Measured lifetimes of the uC Π 3 state of N2 and the +Σga 3 state of H2 - J. Phys., 1971, v.B4(8), pp.1063-1069 15. Chen S.T...Radiative lifetimes of ions measured with the photoelectron spectrometer - Chem. Phys. Lett., 1975, v.30(3), pp.344-346 44. Smith A.J., Read F.H., Imhof
Engineering Ferroic and Multiferroic Materials for Active Cooling Applications
2014-02-11
M. V. Garca-Cuenca , C. Ferrater , M. Varela , J. Appl. Phys. 2006 , 99 , 08P302 . [ 14 ] X. Mart , F. Sanchez , D. Hrabovsky...L. Fabrega , A. Ruyter , J. Fontcuberta , V. Laukhin , V. Skumryev , M. V. Garca-Cuenca , C. Ferrater , M. Varela , A. Vila , U...F. Sanchez , M. V. Garcia-Cuenca , C. Ferrater , M. Varela , U. Lüders , J. F. Bobo , J. Fontcuberta , Phys. Rev. Lett. 2006
1991-01-31
32. p. 4358. 1985. [11] R. A. Fisher. Appi. PhYs. Lett.. vol. 24. p. 598. 1974. 141 R.- K. Klein et al.. Phys. Rev. B, vol. 3 1. p. 68 . 1985. [121 M...S. Datz. J. 0. Kephart. R. K. Klein. R. H. Pan- ’D. Marcuse . Lizht Transmission Optics Van Nostrand- t and H. Park, Nucl. Instrum. Methods B 10/11
Holes in Heisenberg antiferromagnets
Chen, Yang
1990-05-01
In this Brief Report we show that a recent model proposed by Shankar [Phys. Rev. Lett. 63, 203 (1989)], describing the motion of holes in quantum antiferromagnets is equivalent to the Schwinger model [Phys. Rev. 128, 2425 (1962)] in 1+1 dimensions. Some exact results are deduced. In addition to the superconducting long-range order found by Shankar, it is shown that there is a 2pF hole density wave existing with the superconducting pairing instability.
Reshetnyak, A A
2016-01-01
In this paper, we review the concept and properties of finite field-dependent BRST and BRST-antiBRST transformations introduced in our recent study (A. Reshetnyak, IJMPA 29 (2014) 1450128, P. Moshin, A. Reshetnyak, Nucl. Phys. B 888 (2014) 92, Phys. Lett B 739 (2014) 110, IJMPA 29 (2014) 1450159, IJMPA 30 (2015) 1550021, IJMPA 31 (2016) 1650111, [arxiv:1604.03027 [hep-th
Cooling and Trapping of Neutral Atoms
2009-04-30
for 5 < 0. A plot of E± is shown in Fig. 1 showing these limits near the FIG 1: A Plot of £±- The dressed states com- n = 0 plane . These bare...Lett. 96, 253001 (2006). [43] M. E. Carrera -Patio and R. S. Berry, Phys. Rev. A 34, 4728 (1986). [44] S. van Enk and G. Nienhuis, Phys. Rev. A 46, 1438 (1992).
A New Modified Extended Tanh-Function Method and Its Application
BAICheng-Lin; ZHAOHong
2004-01-01
In this paper, a new modified extended tanh-function method is presented for constructing soliton-like,periodic form solutions of nonlinear evolution equation (NEEs). This method is more powerful than the extended tanhfunction method [Phys. Lett. A277 (2000) 212] and the modified extended tanh-function method [Phys. Left. A285 (2001) 355]. Abundant new solutions of two physically important NEEs are obtained by using this method and symbolic computation system Maple.
Robust entanglement generation by reservoir engineering
Muschik, Christine A.; Krauter, Hanna; Jensen, Kasper; Petersen, Jonas M.; Cirac, J. Ignacio; Polzik, Eugene S.
2012-01-01
Following a recent proposal [C. Muschik et. al., Phys. Rev. A 83, 052312 (2011)], engineered dissipative processes have been used for the generation of stable entanglement between two macroscopic atomic ensembles at room temperature [H. Krauter et. al., Phys. Rev. Lett. 107, 080503 (2011)]. This experiment included the preparation of entangled states which are continuously available during a time interval of one hour. Here, we present additional material, further-reaching data and an extensio...
Assisted Cloning and Orthogonal Complementing of an Arbitrary Unknown Two-Qubit Entangled State
FANG Ming; LIU Yi-Min; LIU Jun; SHI Shou-Hua; ZHANG Zhan-Jun
2006-01-01
Based on A.K. Pati's original idea [Phys. Rev. A 61 (2000) 022308] on single-qubit-state-assisted clone, very recently Zhan has proposed two assisted quantum cloning protocols of a special class of unknown two-qubit entangled states [Phys. Lett. A 336 (2005) 317]. In this paper we further generalize Zhan's protocols such that an arbitrary unknown two-qubit entangled state can be treated.
Constraint for the Existence of Ellipsoidal Vesicles
XIE Yu-Zhang
2000-01-01
Under the spontaneous curvature model of lipid bilayers, the constraints for the existence of equilibrium axisym metric oblate and prolate ellipsoidal vesicles are obtained from the general shape equation. They degenerate either to the constraint for the existence of a spherical vesicle or to that of a circular cylindrical vesicle given by Ou-Yang and Helfrich [Phys. Rev. Lett. 59 (1987) 2486; 60(1988)120; Phys. Rev. A 39 (1989) 5280].
A New Formula to Obtain Exact Green's Functions of Time-Dependent Schr(o)dinger Equation
Axel Schulze-Halberg
2004-01-01
We obtain a new relation between Green's functions of the time-dependent Schrodinger equation for stationary potentials and Green's functions of the same equation for certain time-dependent potentials. The relation obtained here emerges very easily from a transformation introduced by Ray [J.R. Ray, Phys. Rev. A26 (1982) 729] and generalizes former work of Dodonov et al. [V. V. Dodonov, V.I. Man'ko, and D.E. Nikonov, Phys. Lett. A162 (1992)359.
WANG Xian-Zhi
2001-01-01
Using the numerical results and some results from the renormalization group theory, we extend our previous approach of determining the Yang-Lee edge singularities of Ising ferromagnets on square, triangular and honeycomb lattices (Phys. Rev. Lett. 78 (1997) 413; Phys. Rev. E56 (1998) 2793; E57 (1998) 5013) and obtain accurate closed-form approximations of the critical lines of anisotropic Ising ferromagnets on these lattices.
Economical phase-covariant cloning with multiclones
Zhang Wen-Hai; Ye Liu
2009-01-01
This paper presents a very simple method to derive the explicit transformations of the optimal economical to M phase-covariant cloning. The fidelity of clones reaches the theoretic bound [D'Ariano G M and Macchiavello C 2003 Phys. Rcv. A 67 042306]. The derived transformations cover the previous contributions [Delgado Y,Lamata L et al,2007 Phys. Rev. Lett. 98 150502] in which M must be odd.
Metal Nanostructures for Detection and Imaging Enhancements
2011-01-03
source spectrum, is delivered into a pig adipose sample. OCT is a widely used optical imaging technique for the diagnoses of many diseases [27-29... Fahr , C. Rockstuhl, and F. Lederer, “Engineering the randomness for enhanced absorption in solar cells,” Appl. Phys. Lett. 92, 171114 (2008). 7. T...Rockstuhl, S. Fahr , and F. Lederer, “Absorption enhancement in solar cells by localized plasmon polaritons,” J. Appl. Phys. 104, 123102 (2008). 31. A
Enhancement of antiferromagnetic spin wave in the heavy-fermion superconductors
Koh, Shun-ichiro
2000-06-01
Recently, the inelastic neutron scattering experiments of UPd 2Al 3 showed that a sharp peak indicating a magnetic excitation appears below the superconducting phase transition temperature (M. Metoki et al., J. Phys. Soc. Japan 66 (1997) 2560, N. Bernhoeft et al., Phys. Rev. Lett. 81 (1998) 4244). Assuming this excitation to be an antiferromagnetic (AFM) spin wave, this paper deals with its enhancement by the superconductivity.
The Hollow Cathode Phase of Pseudospark Operation
1993-06-01
THE HOLLOW CATHODE PHASE OF PSEUDOSPARK OPERATION L. Pitchford and J. P. Boeuf University Paul Sabatier, France V. Puech University De Paris-Sud...ORGANIZATION NAME(S) AND ADDRESS(ES) University Paul Sabatier, France 8. PERFORMING ORGANIZATION REPORT NUMBER 9. SPONSORING/MONITORING AGENCY NAME...Appl. Phys. 53, 1699 (1988). [9] A. Anders, S. Anders, and M. Gundersen, submitted to Phys. Rev. Lett. [10] J. P. Boeuf and L. Pitchford , IEEE
The Two-Dimensional One Component Plasma in a Doubly Periodic Background: Exact Results.
1988-01-24
Background: Exact Results by Francoise Cornu*, Bernard Jancovici*, and Lesser Blum** *Laboratoire de Physique Theorique et Hautes Energies, Universite Paris...87/69 November 1987 1 Laboratolre de Physique Thdorlque et Hautes Energies, Unlversltd Parls-Sud, Bit. 21 1, 91405 Orsay, France (This Laboratory Is...Micanique Quantique (Hermann, Paris, 1977). 9. B. Jancovici, J. Stat. Phys. 2& 43 (1982). 10. S.L. Carnie and D.Y.C. Chan, Chem. Phys. Lett. 77 :437 (1981
Nonlinear Dynamics of Globally Coupled Sine-Gordon Equations
2011-05-01
studied too, including a triangular configuration of linearly coupled parallel fiber Bragg gratings [15], coupled triplets of Gross-Pitaevskii...B. Dueholm, O. A. Levring, J. Mygind, N. F. Pedersen , O. H. Soerensen, and M. Cirillo, Phys. Rev. Lett. 46, 1299 (1981); E. Joergensen, V. P...Malomed, Phys. Rev. B 37, 9325 (1988); A. V. Ustinov, H. Kohlstedt, M. Cirillo, N. F. Pedersen , G. Hallmanns, and C. Heiden, ibid. B 48, 10614
Voltage-Controlled Switching and Thermal Effects in VO2 Nano-Gap Junctions
2014-06-09
Driscoll, J. Quinn, M. Di Ventra, D. N. Basov, G. Seo, Y.-W. Lee, H.-T. Kim, and D. R. Smith, Phys. Rev. B 86, 094203 (2012). 35A. Zimmers , L. Aigouy...R. T. Han , S. D. Mahanti, P. M. Duxbury, F. Yuan, C.-Y. Ruan, K. Wang, and J. Wu, Phys. Rev. Lett. 109, 166406 (2012). 40C. Ko, Z. Yang, and S
Preparation and Characterization of High-Purity Metal Fluorides for Photonic Applications
2011-01-01
Photonics Technol. Lett., 4 446–8 (1992). 8D. F. Anderson, “ Cerium Fluoride – A Scintillator for High-Rate Applica- tions,” Nucl. Instrum. Meth. Phys... Cerium Doped Heavy Metal Fluoride Glasses, a Possible Alternative for Electromagnetic Calorimetry,” Instrum. Meth. Phys. Res. A, 380, 524–36 (1996). 10J...Preparation and Characterization of High-Purity Metal Fluorides for Photonic Applications* Wendy M. Patterson,‡,† Peter C. Stark,§ Thomas M. Yoshida
Search for charmless hadronic decays of B mesons with the SLAC SLD detector
The SLD, Collaboration; Takahashi, Tohru
2000-01-01
Comment: LaTex, 11 pages, 2 figures, uses RevTeX. This version contains minor changes suggested by Phys Rev D reviewers. Previous version was the original resubmission to Physical Review D, Rapid Communications, after rejection from Physical Review Letters. The previous version incorporated a number of changes suggested by Phys. Rev. Lett. referees, including additional clarifying text and figures, as well as a consideration of the possible effects of vector polarization in vector-vector deca...
2012-01-01
films J. Appl. Phys. 112, 073718 (2012) Additional information on Appl. Phys. Lett. Journal Homepage: http://apl.aip.org/ Journal Information...considered for space applications due to their relative advantage in manu- facturability, compared with conventional mercury -cadmium- telluride (MCT) IR...preliminary 1–2 MeV proton irradiation studies of Sb -based T2SLS photodiodes where the detectors were unbiased and at 300 K during irradiation, which
2016-07-28
which were cleaned by sonicating sequentially in detergent (International Products Co., Micro- 90, 1% vol), deionized H2O, acetone, and 2-propanol...Aspnes, D. E. Nonlinear Optical Susceptibilities from Electro- reflectance Moments Analysis. Phys. Rev. Lett. 1971, 26, 1429−1432. ( 68 ) Liptay, W...insulating silicon and gallium arsenide. J. Phys. Chem. Solids 1970, 31, 227−246. (86) Blakemore, J. S. Semiconducting and other major properties of gallium
Lett, Anneliis
2004-01-01
Kaubamärgi olemus ja õiguskaitse tingimused, kaubamärgi ajalooline areng, mittetraditsioonilise kaubamärgi teke, kaitse võimalused rahvusvahelistes lepingutes, regionaalsetes regulatsioonides (ruumilised märgid, helimärgid, lõhnamärgid, värvimärgid)
Kohl, M.; Larsen, Thommy; Carlsen, Kirsten; Mulvad Jeppesen, L.
2006-09-15
Emission of particles into the atmosphere is one of the biggest air pollution problems of our times. The emission of particles causes severe health problems such as respiratory and circulatory diseases, lung cancer, asthma, bronchitis and even causes premature deaths. The emission of particles comes from a number of different sources, where traffic is a considerable contributor. The effects of particle emissions from the traffic on the population are substantial, as the emission comes from mobile sources which create a high local pollution in city areas and in consequence high exposure of the local population. Exhaust particle emissions come mainly from diesel engines, and the introduction of particle filters would have a considerable impact on particle emissions. Vehicle emissions regulation is controlled by the EU. The coming emission regulation, EURO 5, is expected to be put into effect by the beginning of 2010. The current suggestions for the EURO 5 restrictions on particles are set so strict that they will be impossible to fulfil without a particle filter. This report performs a socio-economic analysis on the introduction of particle filters on all light vehicles (<3,500 kg). The analysis assumes that all newly registered diesel powered cars and vans should have a factory installed particle filter from the beginning of 2007. This thereby gives a period of three years before implementation of the EURO 5. (au)
Garcin, Yannick; Schildgen, Taylor F.; Acosta, Verónica Torres; Melnick, Daniel; Guillemoteau, Julien; Willenbring, Jane; Strecker, Manfred R.
2017-09-01
The authors regret that the 10Be concentrations and uncertainties displayed in Table 2 were reported erroneously in the original version. The corrected table appears below for the reader's convenience. We emphasize that the calculations of erosion rates and integration times were performed using the correct data. Thus, these corrections don't affect the discussion and conclusions presented in this study.
Koxvold, L.F.
1997-06-16
In this invention, a fresh wood log is cut to a length of 15-30 cm. A hole is bored centrally down the log axis until 4-7 cm above the end. The upper half of the hole is worked into a conical shape. A hole is bored from the side of the log, gently sloping down until it meets the bottom of the central hole. A wick is placed in the side hole and pushed in until it hits the opposite side of the central hole. Liquid paraffin is carefully poured in from above to fill the lower part of the central hole until it almost runs out of the side hole and then allowed to set. The log is put aside to dry, preferably by air drying, for 3-6 months. The condition that the wood should be fresh prevents the paraffin from impregnating the wood by filling its pores. Tests have shown that the flame is large and yet long-lasting and the combustion is unusually complete. Potential applications include kindling, wood for an open hearth, boiling. 2 figs.
Runyon, K. D.; Bridges, N. T.; Ayoub, F.; Newman, C. E.; Quade, J. J.
2017-02-01
The authors regret that some of the X and Y data were de-correlated in a Matlab script used to generate Fig. 5a (top left pane). They confirm this is an isolated incident and does not change the discussion or conclusion of the paper, nor does it change the message of the figure.
Rohrmann, Alexander; Heermance, Richard; Kapp, Paul; Cai, Fulong
2015-12-01
The authors regret that the longitude coordinates are incorrect for some of the samples displayed in Table 1 (they are correct in Fig. 2). The corrected Table 1 appears below for the reader's convenience.
Lippold, Jörg; Gutjahr, Marcus; Blaser, Patrick; Christner, Emanuel; de Carvalho Ferreira, Maria Luiza; Mulitza, Stefan; Christl, Marcus; Wombacher, Frank; Böhm, Evelyn; Antz, Benny; Cartapanis, Olivier; Vogel, Hendrik; Jaccard, Samuel L.
2017-01-01
We have reconstructed past modes of the Atlantic Meridional Overturning Circulation (AMOC) by combining two sedimentary proxies, Nd isotopes (εNd) and the 231Pa/230Th ratio over the last deglaciation. Combined down-core 231Pa/230Th and εNd records from six Atlantic Ocean sediment archives are presented (Lippold et al., 2016).
Satkoski, Aaron M.; Beukes, Nicolas J.; Li, Weiqiang; Beard, Brian L.; Johnson, Clark M.
2017-02-01
The authors have discovered a calculation error in the concentration data for U, Th and Pb. This error does not affect any measured isotopic compositions: 206Pb/204Pb, 207Pb/204Pb, 238U/204Pb, 232Th/204Pb, and 235U/204Pb; these all remain the same. None of the Fe isotope data are affected. Hence, none of the conclusions for open or closed-system U-Th-Pb behavior are affected, nor the conclusions of a redox gradient between shallow- and deep-water U contents. The magnitude of the shallow- and deep-water U content contrast remains the same, where U contents in shallow seawater are estimated to have been about three times that of deep-water samples.
Bonnand, P.; Williams, H. M.; Parkinson, I. J.; Wood, B. J.; Halliday, A. N.
2017-02-01
The authors have corrected a few minor mistakes that appear in Table 2, that is, four ε 54Cr values have been updated (JP-1, Bremervörde, Kernouve and Saint-Severin). These minor changes do not affect the figures or the conclusions of the article.
Collective modes at the fractional quantum Hall edge
Joglekar, Yogesh; Murthy, Ganpathy
2002-03-01
The fractional quantum Hall edge has been a continuing source of new ideas [1] and experimental results [2] for some time. Most theoretical approaches start with an effective bosonic theory [1] in which all fermions have been integrated out (an exception is the approach based on Chern-Simons theory [3]). Our approach is based on the lowest Landau level Hamiltonian theory of the FQHE [4]. In this theory, composite fermions are fully interacting, and We obtain the collective modes using a conserving approximation which respects the constraints. We present the edge-mode dispersions for various simple fractions. 1. X.-G.Wen, Phys. Rev. Lett. 64, 2206 (1990); A.Lopez and E.Fradkin, Phys. Rev. B 59, 15323 (1999); U. Zulicke and A.H.MacDonald, Phys. Rev. B 60, 2837 (1999); D.-H.Lee and X.-G.Wen, cond-mat/9809160. 2. A.M.Chang et al, Phys. Rev. Lett. 86, 143 (2000). 3. L.S.Levitov, A.V.Shytov, and B.I.Halperin, Phys. Rev. B 64, 075322 (2001). 4. R. Shankar and G. Murthy, Phys. Rev. Lett. 79, 4437 (1997).
QCD breaks Lorentz invariance and colour
Balachandran, A. P.
2016-03-01
In the previous work [A. P. Balachandran and S. Vaidya, Eur. Phys. J. Plus 128, 118 (2013)], we have argued that the algebra of non-Abelian superselection rules is spontaneously broken to its maximal Abelian subalgebra, that is, the algebra generated by its completing commuting set (the two Casimirs, isospin and a basis of its Cartan subalgebra). In this paper, alternative arguments confirming these results are presented. In addition, Lorentz invariance is shown to be broken in quantum chromodynamics (QCD), just as it is in quantum electrodynamics (QED). The experimental consequences of these results include fuzzy mass and spin shells of coloured particles like quarks, and decay life times which depend on the frame of observation [D. Buchholz, Phys. Lett. B 174, 331 (1986); D. Buchholz and K. Fredenhagen, Commun. Math. Phys. 84, 1 (1982; J. Fröhlich, G. Morchio and F. Strocchi, Phys. Lett. B 89, 61 (1979); A. P. Balachandran, S. Kürkçüoğlu, A. R. de Queiroz and S. Vaidya, Eur. Phys. J. C 75, 89 (2015); A. P. Balachandran, S. Kürkçüoğlu and A. R. de Queiroz, Mod. Phys. Lett. A 28, 1350028 (2013)]. In a paper under preparation, these results are extended to the ADM Poincaré group and the local Lorentz group of frames. The renormalisation of the ADM energy by infrared gravitons is also studied and estimated.
Statistical properties of quantum spectra in nuclei
WU; Xizhen
2001-01-01
［1］Wu Xizhen,Sakata,F.,Zhuo Yizhong et al.,Dynamic realization of statistical state in finite systems,Phys.ReV.C,1996,53:1233-1244.［2］Weidenmüller,H.A.,Statistical theory of nuclear reactions and the Gaussian Othogonal Ensemble,Annals of Physics,1984,158:120-141.［3］Hag,R.U.,Pandey,A.,Bohigas,O.,Fluctuation properties of nuclear energy levels:Do theory and experiment agree? Phys.Rev.Lett.,1982,48:1086-1089.［4］Wu Xizhen,Gu Jianzhong,Iwamoto,A.,Statistical properties of quasiparticle spectra in deformed nuclei,Phys.Rev.C,1999,59:215-220.［5］Garrett,J.D.,Robinson,J.Q.,Foglia,A.J.et al.,Nuclear level repulsion and order vs chaos,Phys.Lett.B,1997,392:24-29.［6］Bohigas,O.,Hag,R.U.,Pandy,A.,Fluctuation properties of nuclear energy levels and widths comparison of theory with experiment,in Nuclear Data for Science and Technology (ed.Bockhoff,K.H.),Dordrecht:Reidel,1983,809-813.［7］Heiss,W.D.,Nazmitdinov,R.G.,Radu,S.,Chaos in axially symmetric potentials with Octupole deformation,Phys.Rev.Lett.,1994,72:2351-2354.［8］Wu Xizhen,Gu Jianzhong,Zhuo Yizhong et al.,Possible understanding of hyperdeformed 144-146Ba nuclei appearing in the spontaneous fission of 252Cf,Phys.Rev.Lett.,1997,79:4542-4545.［9］Ter-Akopian,G.M.,Hamilton,J.H.,Oganessian,Y.T.et al.,New spontaneous fission mode for 252Cf:Indication of hyperdeformed 144,145,146Ba at scission,Phys.Rev.Lett.,1996,77:32-35.［10］Adamian,G.G.,Antonenko,N.V.,Ivanova,S.P.et al.,Problems in description of fusion of heavy nuclei in the two-center shell model approach,Nucl.Phys.A,1999,646:29-52.［11］Hofmann,H.,A quantal transport theory for nuclear collective motion:the metrits of a locally harmonic approximation method,Phys.Rep.,1997,284:139-380.［12］Gu Jianzhong,Wu Xizhen,Zhuo Yizhong,Quantum chaotic motion of a single particle in heavy nuclei,Nucl.Phys.A,1997,625:621-632.［13］Gu Jianzhong,Wu Xizhen,Zhuo Yizhong,The single-particle spectrum and its spacing and curvature distributions in
Nonlinear phenomena in Bose-Einstein condensates
Carr, Lincoln D.
2008-05-01
We present a medley of results from the last three years on nonlinear phenomena in BECs [1]. These include exact dynamics of multi-component condensates in optical lattices [2], vortices and ring solitons [3], macroscopic quantum tunneling [4], nonlinear band theory [5], and a pulsed atomic soliton laser [6]. 1. Emergent Nonlinear Phenomena in Bose-Einstein Condensates: Theory and Experiment, ed. P. G. Kevrekidis, D. J. Frantzeskakis, and R. Carretero-Gonzalez (Springer-Verlag, 2008). 2. R. Mark Bradley, James E. Bernard, and L. D. Carr, e-print arXiv:0711.1896 (2007). 3. G. Herring, L. D. Carr, R. Carretero-Gonzalez, P. G. Kevrekidis, D. J. Frantzeskakis, Phys. Rev. A in press, e-print arXiv:0709.2193 (2007); L. D. Carr and C. W. Clark, Phys. Rev. A v. 74, p.043613 (2006); L. D. Carr and C. W. Clark, Phys. Rev. Lett. v. 97, p.010403 (2006). 4. L. D. Carr, M. J. Holland, and B. A. Malomed, J. Phys. B: At. Mol. Opt. Phys., v.38, p.3217 (2005) 5. B. T. Seaman, L. D. Carr, and M. J. Holland, Phys. Rev. A, v. 71, p.033622 (2005). 6. L. D. Carr and J. Brand, Phys. Rev. A, v.70, p.033607 (2004); L. D. Carr and J. Brand, Phys. Rev. Lett., v.92, p.040401 (2004).
Enhancing Otto-Mobile Efficiency via Addition of a Quantum Carnot Cycle
Opatrný, Tomáš; Scully, Marlan O.
2003-09-01
It was shown recently that one can improve the efficiency of the Otto cycle by taking advantage of the internal degrees of freedom of an ideal gas [M. O. Scully, “The Quantum Afterburner”, Phys. Rev. Lett., to be published]. Here we discuss the limiting improvement of the efficiency by considering reversible cycles with both internal and external degrees of freedom.
Persistent Optical Nuclear Spin Narrowing in a Singly Charged InAs Quantum Dot
2012-02-01
Danon and Y. V. Nazarov, “Nuclear tuning and detuning of the electron spin resonance in a quantum dot: theoretical considera- tion,” Phys. Rev. Lett. 100...nuclear state preparation,” Science 321, 817–821 (2008). 16. I. T. Vink, K. C. Nowack, F. H. L. Koppens, J. Danon , Y. V. Nazarov, and L. M. K. Vandersypen
Temporally resolved plasma composition measurements by collective Thomson scattering in TEXTOR
Stejner Pedersen, Morten; Korsholm, Søren Bang; Nielsen, Stefan Kragh
2012-01-01
Fusion plasma composition measurements by collective Thomson scattering (CTS) were demonstrated in recent proof-of-principle measurements in TEXTOR [S. B. Korsholm et al., Phys. Rev. Lett. 106, 165004 (2011)]. Such measurements rely on the ability to resolve and interpret ion cyclotron structure...
Merker, L.; Weichselbaum, A.; Costi, T. A.
2012-08-01
Recent developments in the numerical renormalization group (NRG) allow the construction of the full density matrix (FDM) of quantum impurity models [see A. Weichselbaum and J. von Delft, Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.99.076402 99, 076402 (2007)] by using the completeness of the eliminated states introduced by F. B. Anders and A. Schiller [F. B. Anders and A. Schiller, Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.95.196801 95, 196801 (2005)]. While these developments prove particularly useful in the calculation of transient response and finite-temperature Green's functions of quantum impurity models, they may also be used to calculate thermodynamic properties. In this paper, we assess the FDM approach to thermodynamic properties by applying it to the Anderson impurity model. We compare the results for the susceptibility and specific heat to both the conventional approach within NRG and to exact Bethe ansatz results. We also point out a subtlety in the calculation of the susceptibility (in a uniform field) within the FDM approach. Finally, we show numerically that for the Anderson model, the susceptibilities in response to a local and a uniform magnetic field coincide in the wide-band limit, in accordance with the Clogston-Anderson compensation theorem.
Scanning Tunneling Microscopy of the Organic Conductors (TMTSF)2X(X = C1O4-, REO4-)
1992-02-25
when the 2 vertical position of the tip is fixed, variation in iT is measured that reflects the spatial dependence of p(r,EF). In either mode, the...E.; Terris, B. D.; Wang, H. H.; Carlson, K. D.; Williams, J. M. Phys. Rev. Lett.1986, 57, 629-632. (c) Maruyama, Y.; Inabe, T.; Yamochi, H.; Salto
Exploring the Potential of Nucleic Acid Bases in Organic Light Emitting Diodes
2014-01-01
201403532 www.advmat.de www.MaterialsViews.com of the HOMO–LUMO levels of the various NBs as HBL/ETL within the energy level diagram of the overall device...T. Ishikawa , D. Nishioka , T. Ushikubo , N. Kobayashi , Appl. Phys. Lett. 2010 , 97 , 193301 . [36] M. J. Cho , U. R. Lee , Y. S
无
2005-01-01
By using the further extended tanh method [Phys. Lett. A 307 (2003) 269; Chaos, Solitons & Fractals 17(2003) 669] to the Broer-Kaup system with variable coefficients, abundant new soliton-like solutions and multi-soliton-like solutions are derived. Based on the derived multi-soliton-like solutions which contain arbitrary functions, some interesting multi-soliton structures are revealed.
EXACT DIAGONALIZATION RESULTS FOR MULTIMAGNON IR ABSORPTION IN THE CUPRATES
Lorenzana, J.; Eder, R; Meinders, M.B J; Sawatzky, G.A
1995-01-01
Recent measured bands in the mid IR of parent insulating compounds of cuprate superconductors [Perkins et al. Phys. Rev. Lett. 71 1621 (1993)] are interpreted as multimagnon infrared (IR) absorption assisted by phonons. We present results for the coupling constant of light with this excitations and
Mantica, P.; Challis, C.; Peeters, A.G.
2011-01-01
New transport experiments on JET indicate that ion stiffness mitigation in the core of a rotating plasma, as described by Mantica et al. Phys. Rev. Lett. 102 175002 (2009)] results from the combined effect of high rotational shear and low magnetic shear. The observations have important implicatio...
Revised Definitions of Quantum Dissonance and Quantum Discord
Zhang, Zhan-jun
2010-01-01
We show that all the correlations defined by K. Modi et al [Phys. Rev. Lett. {\\bf 104}, 080501 (2010)] except for the total mutual information should be redefined so that some physical quantities (e.g., the accessible maximal classical correlation and the resultant exact quantum discord) are right.
Xu, G. S.; Wan, B. N.; Wang, H. Q.;
2016-01-01
A new model for the low-to-high (L-H) confinement transition has been developed based on a new paradigm for turbulence suppression by velocity shear [G. M. Staebler et al., Phys. Rev. Lett.110, 055003 (2013)]. The model indicates that the L-H transition can be mediated by a shift in the radial wa...
State-independent experimental test of quantum contextuality in an indivisible system.
Zu, C; Wang, Y-X; Deng, D-L; Chang, X-Y; Liu, K; Hou, P-Y; Yang, H-X; Duan, L-M
2012-10-12
We report the first state-independent experimental test of quantum contextuality on a single photonic qutrit (three-dimensional system), based on a recent theoretical proposal [Phys. Rev. Lett. 108, 030402 (2012)]. Our experiment spotlights quantum contextuality in its most basic form, in a way that is independent of either the state or the tensor product structure of the system.
Johnsen, Kristinn; Jauho, Antti-Pekka
1998-01-01
nonequilibrium mesoscopic structures. We show that a blueshift occurs and sidebands appear in bulklike structures, i.e., the dynamical Franz-Keldysh effect [A.-P. Jauho and K. Johnsen, Phys. Rev. Lett. 76, 4576 (1996)]. An analytic calculation leads to the prediction that in the case of superlattices distinct...
2013-07-25
Muralidharan, J. M. Rebled, S. Estrade, F. Peiro, M. Varela , J. Fontcuberta, F. Sanchez, and F. Sanchez, ACS Nano 4, 4955 (2010). 6R. Ramesh and N. A...Muralidharan, J. Guyonnet, B. Warot-Fonrose, M. Varela , P. Paruch, F. Sanchez, and J. Fontcuberta, Appl. Phys. Lett. 95, 062907 (2009). 19Y. S. Oh, S. Crane, H
Multispeed models in off-lattice Boltzmann simulations
Bardow, A.; Karlin, I.V.; Gusev, A.A.
2008-01-01
The lattice Boltzmann method is a highly promising approach to the simulation of complex flows. Here, we realize recently proposed multispeed lattice Boltzmann models [S. Chikatamarla et al., Phys. Rev. Lett. 97 190601 (2006)] by exploiting the flexibility offered by off-lattice Boltzmann methods.
Symmetry Selection Rules, and Energy Levels of Pr(3+):Y(3)A1(5)O(12)
1989-11-01
sites which are related by rotation opera- tions. Explicit algebraic expressions for each set of B,. parameters associated with one of the six...Davydchenko, Opt. Spectrosc. (USSR) 59 (1985), 677. [31 C. M. Wong, S. R. Rotman , and C. Warde, Appl. Phys. Lett. 44 (1984), 1038. [41 C. A. Morrison and
Renormalization Group Flows of Hamiltonians Using Tensor Networks
Bal, M.; Mariën, M.; Haegeman, J.; Verstraete, F.
2017-06-01
A renormalization group flow of Hamiltonians for two-dimensional classical partition functions is constructed using tensor networks. Similar to tensor network renormalization [G. Evenbly and G. Vidal, Phys. Rev. Lett. 115, 180405 (2015), 10.1103/PhysRevLett.115.180405; S. Yang, Z.-C. Gu, and X.-G. Wen, Phys. Rev. Lett. 118, 110504 (2017), 10.1103/PhysRevLett.118.110504], we obtain approximate fixed point tensor networks at criticality. Our formalism, however, preserves positivity of the tensors at every step and hence yields an interpretation in terms of Hamiltonian flows. We emphasize that the key difference between tensor network approaches and Kadanoff's spin blocking method can be understood in terms of a change of the local basis at every decimation step, a property which is crucial to overcome the area law of mutual information. We derive algebraic relations for fixed point tensors, calculate critical exponents, and benchmark our method on the Ising model and the six-vertex model.
Chiral symmetry breaking with the Curtis-Pennington vertex
Atkinson, D.; Gusynin, V. P.; Maris, P.
1992-01-01
Published in: Phys. Lett. B 303 (1993) 157-162 citations recorded in [Science Citation Index] Abstract: We study chiral symmetry breaking in quenched QED$_4$, using a vertex Ansatz recently proposed by Curtis and Pennington. Bifurcation analysis is employed to establish the existence of a critical c
A Photoacoustic Study of Chemically Active Systems.
1983-09-01
151. 2. M.G. Rockley, Chem. Phys. Lett. 68 (1979) 455 and Appl. Spec. 34 (1980) 405. 3. D.W. Vidrine, Appl. Spec. 34 (1980) 314. 4. B.S.H. Royce, J...submitted to J. Catalysis). 14. D. Marcuse , "Light Transmission Optics," Van Nostrand Reinhold Co., New York (1972) Chapter 3. 15. D. Fournier, A.C
Equivalence of the measures of non-Markovianity for open two-level systems
Zeng, Hao-Sheng; Tang, Ning; Zheng, Yan-Ping; Wang, Guo-You
2011-09-01
Different measures have been presented to depict the deviation of quantum time evolution in open systems from Markovian processes. We demonstrate that the measure proposed by Breuer, Laine, and Piilo [Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.103.210401 103, 210401 (2009)] and the two measures proposed by Rivas, Huelga, and Plenio [Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.105.050403 105, 050403 (2010)] have exactly the same non-Markovian time-evolution intervals and thus are really equivalent to each other when they are applied to open two-level systems coupled to environments via the Jaynes-Cummings or dephasing models. This equivalence implies that the three measures, in different ways, capture the intrinsic character of the non-Markovianity of quantum evolutional processes. We also show that the maximization in the definition of the first measure can be actually removed for the considered models without influencing the sensibility of the measure to detect non-Markovianity.
2013-01-01
R.; Heinz , T. F.; Pinczuk, A.; Flynn, G. W.; Pasupathy, A. N. arXiv:1008.3542v1, 2010. [37] Zhang, B.; Lee, W. H.; Piner, R.; Kholmanov, I.; Wu, Y...Casiraghi, C.; Lazzeri, M.; Mauri, F.; Piscanec, S.; Jiang, D.; Novoselov, K. S.; Roth , S.; et al. Phys. Rev. Lett. 2006, 97 (18), 187401/1−187401/4
Angelsky, O. V.; Bekshaev, A. Ya.; Maksimyak, P. P.
2012-01-01
switching to the right (left) circular polarization, the particles performed spinning motion in agreement with the angular momentum imparted by the field, but they were involved in an orbital rotation around the beam axis as well, which in previous works [Y. Zhao et al, Phys. Rev. Lett. 99, 073901 (2007...
Comment on "Quantum Control and Entanglement in a Chemical Compass"
Kominis, I K
2010-01-01
In this comment we show that the avian compass entanglement considerations of J. Cai, G. G. Guerreschi and H. J. Briegel (Phys. Rev. Lett. 104, 220502 (2010)) result in unphysical predictions on the magnetic sensitivity of this biochemical sensor. As well known, not taking into account decoherence results in an overestimated measurement precision, and this is the case at hand.
Evolution of structural relaxation spectra of glycerol within the gigahertz band
Franosch, T.; Göauttze, W.; Mayr, M. R.; Singh, A. P.
1997-03-01
The structural relaxation spectra and the crossover from relaxation to oscillation dynamics, as measured by Wuttke et al. [Phys. Rev. Lett. 72, 3052 (1994)] for glycerol within the GHz band by depolarized light scattering, are described by the solutions of a schematic mode coupling theory model. The applicability of scaling laws for the discussion of the model solutions is considered.
Measurement of Lifetimes of the Vibrational Levels of the B State of N2.
1984-01-21
observed by Suzaki and Kakimoto and by Mizazki, et al. 15 by using opto-galvanic spectroscopy. The c (0) 1 1u4 u state has been observed in uv emission... Kakimoto , J. Mol. Spectrosc. 93, 423 (1982). 15. K. Miyazaki, H. Scheingrober, and C. R. Vidal, Phys. Rev. Lett. 50, -" ’ 1046 (1983). 16. P. K. Carroll and
Tunable cw Single-Frequency Source for Injection Seeding 2-micrometer Lasers
1990-06-01
Figure 10. P. Grangier , R. E. Slusher, B. Yurke, and A. LaPorta, 4 shows the cluster tuning as a function of applied Phys. Rev. Lett. 59, 2153 (1987...J. Kimble. ’Interference effects in second - 6. P. Grangier , R. E. Slusher. B. Yurke. and A. LaPorta, harmonic generation within an optical cavity." J
Violation of Bell’s inequality in neutral kaons system
Manoj K Samal; Dipankar Home
2002-08-01
We show by general considerations that it is not possible to test violation of the existing versions of Bell’s inequality in entangled neutral kaons system using experimentally accessible thin regenerators. We point out the loophole in the recent argument (A Bramon and M Nowakowski, Phys. Rev. Lett. 83, 1 (1999)) that claimed such a test to be possible.
Müller, Clemens; Stace, Thomas M.
2017-01-01
Motivated by correlated decay processes producing gain, loss, and lasing in driven semiconductor quantum dots [Phys. Rev. Lett. 113, 036801 (2014), 10.1103/PhysRevLett.113.036801; Science 347, 285 (2015), 10.1126/science.aaa2501; Phys. Rev. Lett. 114, 196802 (2015), 10.1103/PhysRevLett.114.196802], we develop a theoretical technique by using Keldysh diagrammatic perturbation theory to derive a Lindblad master equation that goes beyond the usual second-order perturbation theory. We demonstrate the method on the driven dissipative Rabi model, including terms up to fourth order in the interaction between the qubit and both the resonator and environment. This results in a large class of Lindblad dissipators and associated rates which go beyond the terms that have previously been proposed to describe similar systems. All of the additional terms contribute to the system behavior at the same order of perturbation theory. We then apply these results to analyze the phonon-assisted steady-state gain of a microwave field driving a double quantum dot in a resonator. We show that resonator gain and loss are substantially affected by dephasing-assisted dissipative processes in the quantum-dot system. These additional processes, which go beyond recently proposed polaronic theories, are in good quantitative agreement with experimental observations.
Dynamical heterogeneity in a glass-forming ideal gas
Charbonneau, P.; Das, C.; Frenkel, D.
2008-01-01
We conduct a numerical study of the dynamical behavior of a system of three-dimensional "crosses," particles that consist of three mutually perpendicular line segments of length sigma rigidly joined at their midpoints. In an earlier study [W. van Ketel et al., Phys. Rev. Lett. 94, 135703 (2005)] we
Photon side-bands in mesoscopics
Jauho, Antti-Pekka
1998-01-01
This paper reviews several applications of photonic side bands, used by Buttiker and Landauer (Phys. Rev. Lett. 49, 1739 (1982)) in their theory of traversal time in tunneling, in transport and optics of mesoscopic systems. Topics include generalizations of the transmission theory of transport...
Feynman integrals in QCD made simple
CERN. Geneva
2015-01-01
A key insight is that important properties of these functions can be predicted by inspecting the singularity structure of the Feynman integrand. Combined with the differential equations technique, this gives a powerful method for computing the necessary Feynman integrals. I will review these ideas, based on Phys.Rev.Lett. 110 (2013) 25, and present recent new results relevant for QCD scattering amplitudes.
Mutual information, bit error rate and security in W\\'{o}jcik's scheme
Zhang, Z
2004-01-01
In this paper the correct calculations of the mutual information of the whole transmission, the quantum bit error rate (QBER) are presented. Mistakes of the general conclusions relative to the mutual information, the quantum bit error rate (QBER) and the security in W\\'{o}jcik's paper [Phys. Rev. Lett. {\\bf 90}, 157901(2003)] have been pointed out and corrected.
Khachatryan, A.G.; Goor, van F.A.; Boller, K.-J.; Reitsma, A.J.W.; Jaroszynski, D.A.
2004-01-01
Recently a new electron-bunch injection scheme for the laser wakefield accelerator has been proposed [JETP Lett. 74, 371 (2001); Phys. Rev. E 65, 046504 (2002)]. In this scheme, a low energy electron bunch, sent in a plasma channel just before a high-intensity laser pulse, is trapped in the laser wa
Dynamics of Electronically Excited Species in Gaseous and Condensed Phase
1989-12-01
Ph.D. Thesis, University of Minnesota, Minneapolis, MN, 1979 (unpublished). 41. D. G. Truhlar, N. M. Harvey, K. Onda , M. A. Brandt, in Algorithms and...Lawrence Berkeley Laboratory, Berkeley , CA, 1979), p. 220. 42. N. M. Harvey and D. G. Truhlar, Chem. Phys. Lett. 74, 252 (1980). 43. J. B. Delos and W. R
Architectures and Applications for Scalable Quantum Information Systems
2007-01-01
Phys. Rev. Lett., vol. 77, p. 198, 1996. arXive e-print quant-ph/9602019. [18] V. Adve, C. Lattner, M. Brukman, A. Shukla , and B. Gaeke, “LLVA: A Low...the quantum nature of electrons begins to dominate over normal classical behavior. For example, in 100-nm-wide polysil- icon wires at 100 mK , electrons
Higher-accuracy van der Waals density functional
Lee, Kyuho; Murray, Éamonn D.; Kong, Lingzhu
2010-01-01
We propose a second version of the van der Waals density functional of Dion et al. [Phys. Rev. Lett. 92, 246401 (2004)], employing a more accurate semilocal exchange functional and the use of a large-N asymptote gradient correction in determining the vdW kernel. The predicted binding energy...
Decoherence as a Probe of Coherent Quantum Dynamics
D'Arcy, M B; Summy, G S; Guarneri, I; Wimberger, S M; Fishman, S; Buchleitner, A; Arcy, Michael B. d'; Godun, Rachel M.; Summy, Gil S.; Guarneri, Italo; Wimberger, Sandro; Fishman, Shmuel; Buchleitner, Andreas
2004-01-01
The effect of decoherence, induced by spontaneous emission, on the dynamics of periodically kicked cold atoms at quantum resonance is experimentally and theoretically studied. We clarify the nature of the coherent evolution, and the way in which decoherence disrupts it, thereby resolving the puzzle of the observed enhancement of the atomic mean energy growth by decoherence [Phys. Rev. Lett. 87, 074102 (2001)].
Phase-Field Analysis of Fracture-Induced Twinning in Single Crystals
2013-07-01
4]. Indentation experiments on ceramics and minerals often show evidence of both fracture and twinning, with surface damage strongly promoting the...tip. Phys Rev Lett 2011;107:085505. [14] Idesman A, Levitas V, Stein E. Structural changes in elastoplastic material: a unified finite-element approach
Microbubble formation and pinch-off scaling exponent in flow-focusing devices
Hoeve, van Wim; Dollet, Benjamin; Versluis, Michel; Lohse, Detlef
2011-01-01
We investigate the gas jet breakup and the resulting microbubble formation in a microfluidic flow-focusing device using ultra high-speed imaging at 1 × 106 frames/s. In recent experiments [Dollet et al., Phys. Rev. Lett. 100, 034504 (2008)], it was found that in the final stage of the collapse the r
New Methods of Entanglement with Spatial Modes of Light
2014-02-01
2009). [9] E. Nagali, F. Sciarrino, F. De Martini, L. Marrucci, B. Piccirillo, E. Karimi , and E. Santamato, Phys. Rev. Lett. 103, 013601-1–4 (2009...K.R. McCullough, Proc. SPIE 8637, 863706 (2013). [25] F. Cardano, E. Karimi , L. Marrucci, C. de Lisio, and E. Santamato, Opt. Express 21, 8815 (2013
Universal Form of Renormalizable Knots in Symbolic Dynamics
GAO Wen; PENG Shou-Li
2005-01-01
@@ The knot structure of three-dimensional flow has been constructed based on minimal braid assumption [Chin. Phys. Lett. 20 (2003) 1444]. Here we provide a new universal form of renormalizable knots. From this universal form an arbitrary renormalizable knot can be decomposed into a unique set of elementary templates.
Multi-output programmable quantum processor
Yu, Yafei; Feng, Jian; Zhan, Mingsheng
2002-01-01
By combining telecloning and programmable quantum gate array presented by Nielsen and Chuang [Phys.Rev.Lett. 79 :321(1997)], we propose a programmable quantum processor which can be programmed to implement restricted set of operations with several identical data outputs. The outputs are approximately-transformed versions of input data. The processor successes with certain probability.
1990-11-01
Duffing equation, by Gwinn and Westervelt1 3 on intermittency, and by Grebogi et al.14 on smooth and fractal basin boundaries. In this report the...Chaos and Low- Frequency Noise in the Driven Damped Pendulum," Phys. Rev. Lett., Vol. 54, p. 1613 (1985). 14. Grebogi , C., E. Ott, and J.A. Yorke
Entanglement purification for atomic states via cavity QED%基于腔QED技术的原子态纠缠纯化方案
王长春; 方曙东; 汪贤才; 曹卓良
2005-01-01
In this paper, we propose a feasible entanglement purification scheme for an arbitrary unknown atomic entangled states, which is mainly based on the dispersive interaction between two-level atoms and cavity modes. This proposal is a combination of progresses on quantum logic gates (Phys. Rev. Lett. 74,4087(1995)) and the pure theoretical entanglement purification scheme(Phys. Rev. Lett. 76, 722(1996)).%基于两能级原子与单模腔场之间的失谐相互作用,我们提出了一个有效的且能够纯化任意未知原子纠缠态的纠缠纯化方案.将量子逻辑门 (Phys. Rev. Lett. 74,4087(1995))和纠缠纯化(Phys. Rev. Lett. 76, 722(1996))的理论研究的最新进展相结合提出了一个在实验上可行的纠缠纯化物理方案.
Entanglement Distillation for Mixed States Using Particle Statistics
HUANG Xiao-Li; CHENG Li-Hong; YI Xue-Xi
2006-01-01
@@ We extend the idea of entanglement concentration protocol for pure states (Phys. Rev. Lett. 88, 187903) to the case of entanglement distillation for mixed states. The scheme works only with particle statistics and local operations, without the need of any other interactions.
Unusual strain relaxation in Cu thin films on Ni(001)
Rasmussen, F.B.; Baker, J.; Nielsen, M.;
1997-01-01
Surface x-ray diffraction has been used to study the growth of thin Cu films on Ni(001). We give direct evidence for the formation of embedded wedges with internal {111} facets in the film, as recently suggested by Muller et al. [Phys. Rev. Lett. 76, 2358 (1996)]. The unusual strain distribution...
Almost-quantum correlations and their refinements in a tripartite Bell scenario
Vallins, James; Sainz, Ana Belén; Liang, Yeong-Cherng
2017-02-01
We study the set of almost-quantum correlations and their refinements in the simplest tripartite Bell scenario where each party is allowed to perform two dichotomic measurements. In contrast to its bipartite counterpart, we find that there already exist facet Bell inequalities that witness almost-quantum correlations beyond quantum theory in this simplest tripartite Bell scenario. Furthermore, we study the relation between the almost-quantum set and the hierarchy of supersets to the quantum set due to Navascués-Pironio-Acín (NPA) [Phys. Rev. Lett. 98, 010401 (2007), 10.1103/PhysRevLett.98.010401]. While the former lies between the first and the third level of the NPA hierarchy, we find that its second level does not contain and is not contained within the almost-quantum set. Finally, we investigate the hierarchy of refinements to the almost-quantum set due to Moroder et al. [Phys. Rev. Lett. 111, 030501 (2013), 10.1103/PhysRevLett.111.030501], which converges to the set of quantum correlations producible by quantum states having positive partial transposition. This allows us to consider (approximations of) the "biseparable" subsets of the almost-quantum set as well as of the quantum set of correlations, and thereby gain further insights into the subtle similarities and differences between the two sets. In addition, they allow us to identify candidate Bell-like inequalities that can serve as device-independent witnesses for genuine tripartite entanglement.
Numerical Simulation of the Two-State Decoherence Model of Nano-Spin Systems
蒋永进; 陶瑞宝
2002-01-01
We have studied the two-state random decoherence model of the V15 system (Phys. Rev. Lett. 84 (2000) 3458)time and the random dipolar interaction amplitude is verified. The distribution function of decoherence timespreads more widely as the amplitude of the random field is decreased, hence it is dirficult to define a decoherencetime for the system.
Experimental Realization of Perfect Discrimination for Two Unitary Operations
LIU Jian-Jun; HONG Zhi
2008-01-01
We experimentally demonstrate perfect discrimination between two unitary operations by using the sequential scheme proposed by Duan et al.[Phys. Rev. Lett. 98 (2007) 100503] Also, we show how to understand the scheme and to calculate the parameters for two-dimensional operations in the picture of the Bloch sphere.
Sufficient Condition for Validity of Quantum Adiabatic Theorem
TAO Yong
2012-01-01
In this paper, we attempt to give a sufficient condition of guaranteeing the validity of the proof of the quantum adiabatic theorem. The new sufficient condition can clearly remove the inconsistency and the counterexample of the quantum adiabatic theorem pointed out by Marzlin and Sanders [Phys. Rev. Lett. 93 （2004） 160408].
Multi-soliton energy transport in anharmonic lattices
Ostrovskaya, Elena A A.; Mingaleev, Serge F.; Kivshar, Yuri S S.;
2001-01-01
We demonstrate the existence of dynamically stable multihump solitary waves in polaron-type models describing interaction of envelope and lattice excitations. In comparison with the earlier theory of multihump optical solitons (see Phys. Rev. Lett. 83 (1999) 296), our analysis reveals a novel...
2011-02-01
J.; Cheng, K.; Leys, M.; Degroote , S.; Marcon, D.; Visalli, D.; Van Hove, M.; Germain, M.; Borghs, G. IEEE Elect. Dev. Lett. 2010, 31, 111. 16...Visalli, D.; Van Hove, M.; Derluyn, J. ; Degroote , S.; Leys, M.; Cheng, K.; Germain, M.; Borghs, G. Jap. J. Appl. Phys. 2009, 48, 04C101. 24 17
2013-06-17
Wiley-IEEE Press, New Jersey, 1993). 126R. A. Degroot , F. M. Mueller, P. G. Vanengen, and K. H. J. Buschow, Phys. Rev. Lett. 50(25), 2024–2027 (1983...Rector, R. J. Wijnaarden, J. P. Dekker, D. G. deGroot , and N. J. Koeman, Nature 380(6571), 231–234 (1996). 323A. Borgschulte, W. Lohstroh, R. J
Pedersen, Pernille Klarskov; Strikwerda, Andrew; Iwaszczuk, Krzysztof
2013-01-01
in the focal region, and the transition from the donut profile to a central peak is consistent with propagation of a Bessel–Gauss beam, as shown by simulations based on a recent transient photocurrent model (You et al 2012 Phys. Rev. Lett. 109 183902). We combine our measurements to the first full 3D...
Ultrafast Ultraintense Laser-Matter Interactions - From Molecules to Metals
2011-10-25
Journal Publicatoins 1. Making superwetting human enamel and dentin surfaces for enhanced adhesion A.Y. Vorobyev and C. Guo, Appl. Phys. Lett. (in...Wettability and Adhesion , vol 6, 163 (Koninklijke Brill NV, Leiden, 2009). 26. Reply brighter light sources from the black metal A.Y. Vorobyev
A restricted dimer model on a two-dimensional random causal triangulation
Ambjørn, Jan; Durhuus, Bergfinnur; Wheater, J. F.
2014-01-01
We introduce a restricted hard dimer model on a random causal triangulation that is exactly solvable and generalizes a model recently proposed by Atkin and Zohren (2012 Phys. Lett. B 712 445–50). We show that the latter model exhibits unusual behaviour at its multicritical point; in particular, its...
Comparing Three Jet Rates with and without Hadronic Rindler Horizon
Ghaffary, Tooraj
2017-01-01
Recently, some researchers, (Sepehri and Shoorvazi Chin. Phys. Lett. 30(2), 021301, [2013]), have considered the effect of Rindler horizon on three jet rate. This paper confirms their results and by comparing usual models with this new model for different energies, shows that regarding Rindler horizon gives us the results which more close to experimental data respect to usual models.
Rectification of thermal fluctuations in ideal gases.
Meurs, P; Van den Broeck, C; Garcia, A
2004-11-01
We calculate the systematic average speed of the adiabatic piston and a thermal Brownian motor, introduced by C. Van den Broeck, R, Kawai and P. Meurs [Phys. Rev. Lett. 93, 090601 (2004)], by an expansion of the Boltzmann equation and compare with the exact numerical solution.
On the Scaled Fractional Fourier Transformation Operator
FAN Hong-Yi; HU Li-Yun
2008-01-01
Based on our previous study [Chin.Phys.Lett.24(2007)2238]in which the Fresnel operator corresponding to classical Fresnel transform was introduced,we derive the fractional Fourier transformation operator,and the optical operator method is then enriched.
Morozov, AN; Zvelindovsky, AV; Fraaije, JGEM
2001-01-01
In this paper, we incorporate some real-system effects into the theory of orientational phase transitions under shear flow [M. E. Cates and S. T. Milner, Phys. Rev. Lett. 62 1856 (1989) and G. H. Fredrickson, J. Rheol. 38, 1045 (1994)]. In particular, we study the influence of the shear-cell
de Graaf, Joost; Filion, Laura; Marechal, Matthieu; van Roij, René; Dijkstra, Marjolein
2012-12-01
In this paper, we describe the way to set up the floppy-box Monte Carlo (FBMC) method [L. Filion, M. Marechal, B. van Oorschot, D. Pelt, F. Smallenburg, and M. Dijkstra, Phys. Rev. Lett. 103, 188302 (2009), 10.1103/PhysRevLett.103.188302] to predict crystal-structure candidates for colloidal particles. The algorithm is explained in detail to ensure that it can be straightforwardly implemented on the basis of this text. The handling of hard-particle interactions in the FBMC algorithm is given special attention, as (soft) short-range and semi-long-range interactions can be treated in an analogous way. We also discuss two types of algorithms for checking for overlaps between polyhedra, the method of separating axes and a triangular-tessellation based technique. These can be combined with the FBMC method to enable crystal-structure prediction for systems composed of highly shape-anisotropic particles. Moreover, we present the results for the dense crystal structures predicted using the FBMC method for 159 (non)convex faceted particles, on which the findings in [J. de Graaf, R. van Roij, and M. Dijkstra, Phys. Rev. Lett. 107, 155501 (2011), 10.1103/PhysRevLett.107.155501] were based. Finally, we comment on the process of crystal-structure prediction itself and the choices that can be made in these simulations.
Comment on 'Five-Dimensional Cosmological Model with Variable G and Λ'
Arbab Ibrahim Arbab
2008-01-01
This comment corrects the small errors in the Letter of Baysal and Yilmaz[Chin.Phys.Lett.24(2007)2185],where the case of n=1 was ignored.Meanwhile,the discussion in this comment on the case of n=-3 is novel,which shows a potential reason why today the effect of the extra dimension has not been observed.
Saleh, Mohammed F.; Biancalana, Fabio
2011-12-01
We present the details of our previously formulated model [Saleh , Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.107.203902 107, 203902 (2011)] that governs pulse propagation in hollow-core photonic crystal fibers filled by an ionizable gas. By using perturbative methods, we find that the photoionization process induces the opposite phenomenon of the well-known Raman self-frequency redshift of solitons in solid-core glass fibers, as was recently experimentally demonstrated [Hölzer , Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.107.203901 107, 203901 (2011)]. This process is only limited by ionization losses, and leads to a constant acceleration of solitons in the time domain with a continuous blueshift in the frequency domain. By applying the Gagnon-Bélanger gauge transformation, multipeak “inverted gravitylike” solitary waves are predicted. We also demonstrate that the pulse dynamics shows the ejection of solitons during propagation in such fibers, analogous to what happens in conventional solid-core fibers. Moreover, unconventional long-range nonlocal interactions between temporally distant solitons, unique of gas plasma systems, are predicted and studied. Finally, the effects of higher-order dispersion coefficients and the shock operator on the pulse dynamics are investigated, showing that the conversion efficiency of resonant radiation into the deep UV can be improved via plasma formation.
Does water vapor prevent upscaling sonoluminescence?
Tögel, R.; Gompf, Bruno; Pecha, Rainer; Lohse, Detlef
2000-01-01
Experimental results for single-bubble sonoluminescence of air bubbles at very low frequency f = 7.1 kHz are presented: In contrast to the predictions of a recent model [S. Hilgenfeldt and D. Lohse, Phys. Rev. Lett. 82, 1036 (1999)], the bubbles are only as bright ( 104¿105 photons per pulse) and
2003-04-03
film on MgO. In addition, JCPDS based analysis show peaks corresponding to Pt30 4 and (100) MgO. Figure 3 shows the XRD pattern of the Mg-doped BCTZ...Appl. Phys. Lett., 78, 3517 (2001). 9. Powder Diffraction File (International Center for Diffraction Data, Swarthmore, PA, 1995) JCPDS card 36-19. 10
Darboux Transformations for Energy-Dependent Potentials and the Klein-Gordon Equation
Schulze-Halberg, Axel, E-mail: axgeschu@iun.edu [Indiana University Northwest, Department of Mathematics and Actuarial Science (United States)
2013-06-15
We construct explicit Darboux transformations for a generalized Schroedinger-type equation with energy-dependent potential, a special case of which is the stationary Klein-Gordon equation. Our results complement and generalize former findings (Lin et al., Phys Lett A 362:212-214, 2007).
Hole Burning in the Fock Space: from Single to Several Holes
B. Baseia; J. M. C. Malbouisson
2001-01-01
In our previous papers we have studied the production of a single hole in the photon number distribution of a field state [Phys. Lett. A 240 (1998) 277; 253 (1999) 123]. In this letter we extend the procedure for the controlled creation of an arbitrary number of holes.
Research in Pulsed Power Plasma Physics
1993-11-01
constraints will preclude the use of channels with much with a Tesla coil. Nor is uniformity improved by the use of larger wall radii. a 3 kA prepulse. Driving...Oliphant. 12C. Bruno, J. Delvaux. A. Nicolas . and M. Roche, IEEE Trans. Plasma and P. F. Ottinger. App!. Phys. Lett. 45. 1043 (1984).ISci. PS-IS, 686
High Fidelity Quantum Gates via Analytically Solvable Pulses
2012-06-06
S) AND ADDRESS(ES) Naval Research Laboratory,4555 Overlook Ave SW,Washington,DC,20375 8. PERFORMING ORGANIZATION REPORT NUMBER 9. SPONSORING...J. Ramsay, Y. Wu, P. Brereton, S. J. Boyle, I. J. Luxmoore, J. Puebla -Nunez, A. M. Fox, and M. S. Skolnick, Phys. Rev. Lett. 108, 017402 (2012). [6
Coupled fluid-flow and magnetic-field simulation of the Riga dynamo experiment
Kenjereš, S.; Hanjalić, K.; Renaudier, S.; Stefani, F.; Gerbeth, G.; Gailitis, A.
2006-01-01
Magnetic fields of planets, stars, and galaxies result from self-excitation in moving electroconducting fluids, also known as the dynamo effect. This phenomenon was recently experimentally confirmed in the Riga dynamo experiment [ A. Gailitis et al., Phys. Rev. Lett. 84, 4365 (2000) ; A. Gailitis et
Numerical insights into magnetic dynamo action in a turbulent regime
Kenjeres, S.; Hanjalic, K.
2007-01-01
We report on hybrid numerical simulations of a turbulent magnetic dynamo. The simulated set-up mimics the Riga dynamo experiment characterized by Re ≈ 3.5 × 106 and (Gailitis et al 2000 Phys. Rev. Lett. 84 4365–8). The simulations were performed by a simultaneous fully coupled solution of the trans
1994-01-01
A. Bohling and C. T. Muhr. App!. Phys. Lett. 60, 2421 (1992); J. Crystal Growth 142, 64 (1992). 8. M. H. Zimmner. R. Hovel, W. Brysch, A. Brauers and...AeeeercSoehkty blications of several authors have prefer- ---- fred line-of-sight models 1,2 as well as "continuum-like" diffusion-reaction mo- dels 3-6
Moment switching in nanotube magnetic force probes
Kirtley, J.R.; Deng, Z.; Luan, L.; Yenilmez, E.; Dai, H.; Moler, K.A.
2007-01-01
Magnetic images of high density vertically recorded media using metal-coated carbon nanotube tips exhibit a doubling of the spatial frequency under some conditions (Deng et al 2004 Appl. Phys. Lett. 85 6263). Here we demonstrate that this spatial frequency doubling is due to the switching of the
Observations of Collective Ion Acceleration.
1981-01-01
possible benefit can be listed. In cancer therapy, radiation produced by ion beams may be more selectively directed into tumors. Ion beams in spallation...34Autoresonant Accelerator Concept," Phys. Rev. Lett. 31, 1234 (1973). 50. S. Humphries, J. J. Lee, and R. N. Sudan, "Generation of Incense Pulsed Ion Beams
Comment on 'Comment on "Hamiltonian for the zeros of the Riemann zeta function" '
Bender, Carl M.; Brody, Dorje C.; Müller, Markus P.
2017-01-01
This paper is in response to a recent comment by Bellissard [arXiv:1704.02644] on the paper [Phys. Rev. Lett. 118, 130201 (2017)]. It is explained that the issues raised in the comment have already been discussed in the paper and do not affect the conclusions of the paper.
Simulations of Axisymmetric Erosion in IFR-Transported Beams
1989-02-21
energy beam propagation studies. 17 References 1. G. J. Caporaso, F. Rainer, W. E. Martin, D. S. Prono and A. G. Cole, Phys. Rev. Lett. 57, 1591 (1986). 2...Mark, L-477 Dr. William Fawley JA C)R Dr. William Barletta 39(50 Libery Street, Suite 320 Dr. William Sharp Freenont, CA ’.533 Dr. Daniel S. Prono At
Catch-Disperse-Release Readout for Superconducting Qubits
2013-03-01
Weides, J. Wenner , T. Yamamoto, A. N. Cleland, and J. M. Mar- tinis, Phys. Rev. Lett. 106, 060501 (2011). [20] Y. Yin, Y. Chen, D. Sank, P. J. J...O’Malley, T. C. White, R. Barends, J. Kelly, E. Lucero, M. Mariantoni, A. Megrant, C. Neill, A. Vainsencher, J. Wenner , A. N. Korotkov, A. N. Cle- land, and
Reply to Marinatto's comment on "Bell's theorem without inequalities and without alignments"
Cabello, A
2004-01-01
Marinatto claims that in the proof of Bell's theorem without inequalities and without alignments [A. Cabello, Phys. Rev. Lett. 91, 230403 (2003)], local observables cannot be measured by means of tests on individual qubits. Marinatto's claim is incorrect. To support this, the proof is explicitly rewritten in terms of tests on individual qubits.
Bloch-like oscillations in a one-dimensional lattice with long-range correlated disorder.
Domínguez-Adame, F; Malyshev, V A; de Moura, F A B F; Lyra, M L
2003-11-01
We study the dynamics of an electron subjected to a uniform electric field within a tight-binding model with long-range-correlated diagonal disorder. The random distribution of site energies is assumed to have a power spectrum S(k) approximately 1/k(alpha) with alpha>0. de Moura and Lyra [Phys. Rev. Lett. 81, 3735 (1998)
Studies of Bistable Optical Devices.
1982-05-15
Alternate Switching, and Subharmonic Generation in Bistable Optical Devices" (J. A. Goldstone, P.-T. Ho, E. Garmire) Appl. Phys. Lett. 37, 126 (1980). 7...demonstrated with modulators which are inherently slow, but have useful features. This includes driving a thin Fabry-Perot with a piezo -electric (McCall, Appl
Comparing Three Jet Rates With and Without Hadronic Rindler Horizon
Ghaffary, Tooraj
2016-01-01
Recently some researchers, (A. Sepehri, S. Shoorvazi, CHIN. PHYS. LETT. Vol. 30, No. 2 (2013)), have considered the effect of Rindler horizon on three jet rate. This paper confirms their results and by comparing usual models with this new model for different energies, shows that regarding Rindler horizon gives us the results which more close to experimental data respect to usual models
Fresnel representation of the Wigner function: an operational approach.
Lougovski, P; Solano, E; Zhang, Z M; Walther, H; Mack, H; Schleich, W P
2003-07-04
We present an operational definition of the Wigner function. Our method relies on the Fresnel transform of measured Rabi oscillations and applies to motional states of trapped atoms as well as to field states in cavities. We illustrate this technique using data from recent experiments in ion traps [Phys. Rev. Lett. 76, 1796 (1996)
Variation of the dynamic susceptibility along an isochrone
Bailey, Nicholas; Schrøder, Thomas; Dyre, J. C.
2014-01-01
Koperwas et al. showed in a recent paper [Phys. Rev. Lett. 111, 125701 (2013)] that the dynamic susceptibility χ4 as estimated by dielectric measurements for certain glass-forming liquids decreases substantially with increasing pressure along a curve of constant relaxation time. This observation...
Scott, J. F.
2015-12-01
Unusual domains with curved walls and failure to satisfy the Landau-Lifshitz-Kittel Law are modeled as folding catastrophes (saddle-node bifurcations). This description of ballistic motion in a viscous medium is based upon early work by Dawber et al 2003 Appl. Phys. Lett. 82 436. It suggests that ferroelectric films can exhibit folds or vortex patterns but not both.
Rosu, H C
2003-01-01
In the wake of our recent work on cyclotomic effects in quantum phase locking [M. Planat and H. C. Rosu, Phys. Lett. A 315, 1 (2003)], we briefly discuss here a cyclotomic extension of the Salecker and Wigner quantum clock. We also hint on a possible cyclotomic structure of time at the Planck scales
Bounds on the Number and Size of Extra Dimensions from Molecular Spectroscopy
Salumbides, Edcel John; Schellekens, Bert; Gato-Rivera, Beatriz; Ubachs, Wim
2015-06-01
Modern string theories, which seek to produce a consistent description of physics beyond the Standard Model that also includes the gravitational interaction, appear to be most consistent if a large number of dimensions are postulated. For example the mysterious M-theory, which generalizes all consistent versions of superstring theories, require 11 dimensions. We demonstrate that investigations of quantum level energies in simple molecular systems provide a testing ground to constrain the size of compactified extra dimensions, for example those proposed in the ADD [1] and RS scenarios [2]. This is made possible by the recent progress in precision metrology with ultrastable lasers on energy levels in neutral molecular hydrogen (H_2, HD and D_2) [3] and the molecular hydrogen ions (H_2^+, HD^+ and D_2^+) [4]. Comparisons between experiment and quantum electrodynamics calculations for these molecular systems can be interpreted in terms of probing large extra dimensions, under which conditions gravity will become much stronger. Molecules are a probe of space-time geometry at typical distances where chemical bonds are effective, i.e. at length scales of an Å. [1] N. Arkani-Hamed, S. Dimopoulos and G. Dvali, Phys. Lett. B 429, 263 (1998) [2] L. Randall and R. Sundrum, Phys. Rev. Lett. 83, 3370 (1999). [3] G. Dickenson et al., Phys. Rev. Lett. 110, 193601 (2013). [4] J. C. J. Koelemeij et al., Phys. Rev. Lett. 98, 173002 (2007).
Computer Simulation of Intense Electron Beam Generation in a Hollow Cathode Diode.
1980-09-05
Phys. Rev. Lett. 40, 1504 (1978).I ’ 9. Robert K. Parker, Technical Report AFWL-TR-73-92, USAF Weapons Lab., Albuquerque, New Mexico (1973). , 12 .% xv...t C. Bruno (1 copy) J. Barbaro (. copy) Ecole Polytechnique ft Labo, PMI 91128 Palaiseau Cedex France Attn: 11. Doucet (1 copy) J. M. Buzzi (1 copy
Modulational instability of few cycle pulses in optical fibers
Sarma, Amarendra K
2010-01-01
We investigate the modulational instability of a mathematical model [based on the model proposed by T. Brabec and F. Krausz, Phys.Rev. Lett. 78, 3282(1997)] appropriate for few cycle optical pulses with pulse duration as short as one carrier oscillation cycle in the context of a standard silica fiber operating at the telecommunication wavelength 1550 nm.
2010-05-01
Science, 2009. 9. Reference: 1. Ferguson , B., Zhang, X.-C. Materials for terahertz science and technology, Nature Materials 1, 26 - 33 (01 Sep 2002...interaction, Phys. Rev. Lett., 71, 2725-2728 (1993). 21. Woolard D.L., Brown R., Pepper M., Kemp M., Terahertz frequency sensing and imaging: a time
In Search of High J States in the HF(v, J) System
2011-07-15
published only for the exchange and stimulation of ideas. bcotrt W Levinson, 2nd Lt, USAF Jos Hess -, Gc-15, Director, West Coast Project Officer Office...Yardley, IEEE J. Quan. Elec. QE-6, 113 (1970). 4. N. Skribanovitz, 1. P. Herman , Ro M. Osgood, Jr., M. S. Feld, and A. Javan, Appl. Phys. Lett. 20
Renormalization Group Flows of Hamiltonians Using Tensor Networks.
Bal, M; Mariën, M; Haegeman, J; Verstraete, F
2017-06-23
A renormalization group flow of Hamiltonians for two-dimensional classical partition functions is constructed using tensor networks. Similar to tensor network renormalization [G. Evenbly and G. Vidal, Phys. Rev. Lett. 115, 180405 (2015)PRLTAO0031-900710.1103/PhysRevLett.115.180405; S. Yang, Z.-C. Gu, and X.-G. Wen, Phys. Rev. Lett. 118, 110504 (2017)PRLTAO0031-900710.1103/PhysRevLett.118.110504], we obtain approximate fixed point tensor networks at criticality. Our formalism, however, preserves positivity of the tensors at every step and hence yields an interpretation in terms of Hamiltonian flows. We emphasize that the key difference between tensor network approaches and Kadanoff's spin blocking method can be understood in terms of a change of the local basis at every decimation step, a property which is crucial to overcome the area law of mutual information. We derive algebraic relations for fixed point tensors, calculate critical exponents, and benchmark our method on the Ising model and the six-vertex model.
Tailoring Chirp in Spin-Lasers
Lee, Jeongsu; Boeris, Guilhem; Vyborny, Karel; Zutic, Igor
2012-02-01
The interplay of spin injection in lasers and their nonlinear response leads to novel spintronic devices [1]. Such spin-lasers can enable desirable properties including threshold reduction, bandwidth enhancement, and low chirp [1-3]. These lasers can also be viewed as spin-amplifiers, since high circular polarization in the output can be achieved even with nearly spin-unpolarized injection [2,3]. In the present work, we study chirp in spin-lasers and suggest new modulation schemes to improve their performance. Supported by NSF-ECCS, U.S. ONR, AFOSR-DCT, and NSF-NEB 2020. [4pt] [1] M. Holub et al., Phys. Rev. Lett. 98, 146603 (2007); J. Rudolph et al., Appl. Phys. Lett. 87, 241117 (2005). [0pt] [2] J. Lee, W. Falls, R. Oszwadowski, and I. Zuti'c, Appl. Phys. Lett. 97, 041116 (2010).[0pt] [3] C. Gøthgen, R. Oszwadowski, A. Petrou, and I. Zuti'c, Appl. Phys. Lett. 93, 042513 (2008).[0pt] [4] G. Boeris, J. Lee, K. V'yborn'y, and I. Zuti'c, preprint (2011).
Further comment on pion electroproduction and the axial form factor
Bernard, V; Meißner, Ulf G; Mei{\\ss}ner, Ulf-G.
2001-01-01
We show that a recent claim (H.Haberzettl, Phys. Rev. Lett. 85 (2000) 3576) that one cannot extract the nucleon weak axial form factor G_A (t) from charged pion threshold electroproduction is incorrect. Thus previous calculations remain valid and threshold charged pion electroproduction experiments can indeed be used to determine G_A (t), and they should certainly be pursued.
Reply to "Comment about pion electroproduction and the axial form factors"
Haberzettl, H
2001-01-01
It is shown that comments by Guichon [hep-ph/0012126], and also by Bernard, Kaiser, and Mei{\\ss}ner [hep-ph/0101062], regarding my recent criticism [Phys. Rev. Lett. 85, 3576 (2000)] of how the axial form factor is supposed to enter pion electroproduction do not address the main point of my argument and therefore are irrelevant.
2014-09-10
Kim, L. T. Schelhas, S. Keller, J. L. Hockel, S. H. Tolbert, and G. P. Carman , Nano Lett. 13, 884 (2013). 13 S. Zhang, Y. G. Zhao, P. S. Li, J. J...and D. Viehland, J. Am. Ceram. Soc. 92, 1552 (2009). 36 Tien-Kan Chung, Kin Wong, Scott Keller, Kang L. Wang, and Gregory P. Carman , J. Appl. Phys. 106
2013-01-01
Carbon Nanotube Growth Termina- tion. J. Phys. Chem. Lett. 2010, 1, 918–922. 25. Kamat, P. V. Graphene-Based Nanoarchitectures. Anchor- ing Semiconductor ...1980, 51, 4813–4816. 35. Xiang, Q.; Yu, J.; Jaroniec, M. Synergetic Effect of MoS2 and Graphene as Cocatalysts for Enhanced Photocatalytic H2
Necessary and Sufficient Condition for Quantum State-Independent Contextuality.
Cabello, Adán; Kleinmann, Matthias; Budroni, Costantino
2015-06-26
We solve the problem of whether a set of quantum tests reveals state-independent contextuality and use this result to identify the simplest set of the minimal dimension. We also show that identifying state-independent contextuality graphs [R. Ramanathan and P. Horodecki, Phys. Rev. Lett. 112, 040404 (2014)] is not sufficient for revealing state-independent contextuality.
Experimental Observation of Hardy-Like Quantum Contextuality
Marques, Breno; Ahrens, Johan; Nawareg, Mohamed; Cabello, Adán; Bourennane, Mohamed
2014-12-01
Contextuality is a fundamental property of quantum theory and a critical resource for quantum computation. Here, we experimentally observe the arguably cleanest form of contextuality in quantum theory [A. Cabello et al., Phys. Rev. Lett. 111, 180404 (2013)] by implementing a novel method for performing two sequential measurements on heralded photons. This method opens the door to a variety of fundamental experiments and applications.
Kalamidas, Demetrios A
2011-01-01
Motivated by a proposal from Greenberger [Physica Scripta T76, p.57 (1998) ] for superluminal signaling, and inspired by an experiment from Mandel [Phys. Rev. Lett. 67, p.318 (1991) ] showing interference effects within multi-particle entanglement without coincidence detection, we propose a feasible quantum-optical scheme that purports to manifest the capacity for superluminal transfer of information between distant parties.
Ultra-Dense Quantum Communication Using Integrated Photonic Architecture: Second Quarterly Report
2011-04-30
bipartite states. Phys. Rev. Lett., 98(6):060503, Feb 2007. [3] Po Dong, Wei Qian, Shirong Liao, Hong Liang, Cheng- Chih Kung, Ning-Ning Feng, Roshanak...with different azimuthal indices, i.e., different orbital angular momenta. Our effort is now picking up as a new postdoc, Ligong Wang , has arrived at
Polygon formation and surface flow on a rotating fluid surface
Bergmann, Raymond; Tophøj, Laust Emil Hjerrild; Homan, T. A. M.;
2011-01-01
We present a study of polygons forming on the free surface of a water flow confined to a stationary cylinder and driven by a rotating bottom plate as described by Jansson et al. (Phys. Rev. Lett., vol. 96, 2006, 174502). In particular, we study the case of a triangular structure, either completel...
Improved Analysis of GW150914 Using a Fully Spin-Precessing Waveform Model
Abbott, B. P.; Abbott, R.; Abbott, T. D.; Abernathy, M. R.; Acernese, F.; Ackley, K.; Adams, C.; Adams, T.; Addesso, P.; Adhikari, R. X.; Adya, V. B.; Affeldt, C.; Agathos, M.; Agatsuma, K.; Aggarwal, N.; Aguiar, O. D.; Aiello, L.; Ain, A.; Ajith, P.; Allen, B.; Allocca, A.; Altin, P. A.; Anderson, S. B.; Anderson, W. G.; Arai, K.; Araya, M. C.; Arceneaux, C. C.; Areeda, J. S.; Arnaud, N.; Arun, K. G.; Ascenzi, S.; Ashton, G.; Ast, M.; Aston, S. M.; Astone, P.; Aufmuth, P.; Aulbert, C.; Babak, S.; Bacon, P.; Bader, M. K. M.; Baker, P. T.; Baldaccini, F.; Ballardin, G.; Ballmer, S. W.; Barayoga, J. C.; Barclay, S. E.; Barish, B. C.; Barker, D.; Barone, F.; Barr, B.; Barsotti, L.; Barsuglia, M.; Barta, D.; Bartlett, J.; Bartos, I.; Bassiri, R.; Basti, A.; Batch, J. C.; Baune, C.; Bavigadda, V.; Bazzan, M.; Bejger, M.; Bell, A. S.; Berger, B. K.; Bergmann, G.; Berry, C. P. L.; Bersanetti, D.; Bertolini, A.; Betzwieser, J.; Bhagwat, S.; Bhandare, R.; Bilenko, I. A.; Billingsley, G.; Birch, J.; Birney, R.; Birnholtz, O.; Biscans, S.; Bisht, A.; Bitossi, M.; Biwer, C.; Bizouard, M. A.; Blackburn, J. K.; Blair, C. D.; Blair, D. G.; Blair, R. M.; Bloemen, S.; Bock, O.; Boer, M.; Bogaert, G.; Bogan, C.; Bohe, A.; Bond, C.; Bondu, F.; Bonnand, R.; Boom, B. A.; Bork, R.; Boschi, V.; Bose, S.; Bouffanais, Y.; Bozzi, A.; Bradaschia, C.; Brady, P. R.; Braginsky, V. B.; Branchesi, M.; Brau, J. E.; Briant, T.; Brillet, A.; Brinkmann, M.; Brisson, V.; Brockill, P.; Broida, J. E.; Brooks, A. F.; Brown, D. A.; Brown, D. D.; Brown, N. M.; Brunett, S.; Buchanan, C. C.; Buikema, A.; Bulik, T.; Bulten, H. J.; Buonanno, A.; Buskulic, D.; Buy, C.; Byer, R. L.; Cabero, M.; Cadonati, L.; Cagnoli, G.; Cahillane, C.; Calderón Bustillo, J.; Callister, T.; Calloni, E.; Camp, J. B.; Cannon, K. C.; Cao, J.; Capano, C. D.; Capocasa, E.; Carbognani, F.; Caride, S.; Casanueva Diaz, C.; Casentini, J.; Caudill, S.; Cavaglià, M.; Cavalier, F.; Cavalieri, R.; Cella, G.; Cepeda, C. B.; Cerboni Baiardi, L.; Cerretani, G.; Cesarini, E.; Chamberlin, S. J.; Chan, M.; Chao, S.; Charlton, P.; Chassande-Mottin, E.; Cheeseboro, B. D.; Chen, H. Y.; Chen, Y.; Cheng, C.; Chincarini, A.; Chiummo, A.; Cho, H. S.; Cho, M.; Chow, J. H.; Christensen, N.; Chu, Q.; Chua, S.; Chung, S.; Ciani, G.; Clara, F.; Clark, J. A.; Cleva, F.; Coccia, E.; Cohadon, P.-F.; Colla, A.; Collette, C. G.; Cominsky, L.; Constancio, M.; Conte, A.; Conti, L.; Cook, D.; Corbitt, T. R.; Cornish, N.; Corsi, A.; Cortese, S.; Costa, C. A.; Coughlin, M. W.; Coughlin, S. B.; Coulon, J.-P.; Countryman, S. T.; Couvares, P.; Cowan, E. E.; Coward, D. M.; Cowart, M. J.; Coyne, D. C.; Coyne, R.; Craig, K.; Creighton, J. D. E.; Cripe, J.; Crowder, S. G.; Cumming, A.; Cunningham, L.; Cuoco, E.; Dal Canton, T.; Danilishin, S. L.; D'Antonio, S.; Danzmann, K.; Darman, N. S.; Dasgupta, A.; Da Silva Costa, C. F.; Dattilo, V.; Dave, I.; Davier, M.; Davies, G. S.; Daw, E. J.; Day, R.; De, S.; DeBra, D.; Debreczeni, G.; Degallaix, J.; De Laurentis, M.; Deléglise, S.; Del Pozzo, W.; Denker, T.; Dent, T.; Dergachev, V.; De Rosa, R.; DeRosa, R. T.; DeSalvo, R.; Devine, R. C.; Dhurandhar, S.; Díaz, M. C.; Di Fiore, L.; Di Giovanni, M.; Di Girolamo, T.; Di Lieto, A.; Di Pace, S.; Di Palma, I.; Di Virgilio, A.; Dolique, V.; Donovan, F.; Dooley, K. L.; Doravari, S.; Douglas, R.; Downes, T. P.; Drago, M.; Drever, R. W. P.; Driggers, J. C.; Ducrot, M.; Dwyer, S. E.; Edo, T. B.; Edwards, M. C.; Effler, A.; Eggenstein, H.-B.; Ehrens, P.; Eichholz, J.; Eikenberry, S. S.; Engels, W.; Essick, R. C.; Etienne, Z.; Etzel, T.; Evans, M.; Evans, T. M.; Everett, R.; Factourovich, M.; Fafone, V.; Fair, H.; Fairhurst, S.; Fan, X.; Fang, Q.; Farinon, S.; Farr, B.; Farr, W. M.; Fauchon-Jones, E.; Favata, M.; Fays, M.; Fehrmann, H.; Fejer, M. M.; Fenyvesi, E.; Ferrante, I.; Ferreira, E. C.; Ferrini, F.; Fidecaro, F.; Fiori, I.; Fiorucci, D.; Fisher, R. P.; Flaminio, R.; Fletcher, M.; Fournier, J.-D.; Frasca, S.; Frasconi, F.; Frei, Z.; Freise, A.; Frey, R.; Frey, V.; Fritschel, P.; Frolov, V. V.; Fulda, P.; Fyffe, M.; Gabbard, H. A. G.; Gaebel, S.; Gair, J. R.; Gammaitoni, L.; Gaonkar, S. G.; Garufi, F.; Gaur, G.; Gehrels, N.; Gemme, G.; Geng, P.; Genin, E.; Gennai, A.; George, J.; Gergely, L.; Germain, V.; Ghosh, Abhirup; Ghosh, Archisman; Ghosh, S.; Giaime, J. A.; Giardina, K. D.; Giazotto, A.; Gill, K.; Glaefke, A.; Goetz, E.; Goetz, R.; Gondan, L.; González, G.; Gonzalez Castro, J. M.; Gopakumar, A.; Gordon, N. A.; Gorodetsky, M. L.; Gossan, S. E.; Gosselin, M.; Gouaty, R.; Grado, A.; Graef, C.; Graff, P. B.; Granata, M.; Grant, A.; Gras, S.; Gray, C.; Greco, G.; Green, A. C.; Groot, P.; Grote, H.; Grunewald, S.; Guidi, G. M.; Guo, X.; Gupta, A.; Gupta, M. K.; Gushwa, K. E.; Gustafson, E. K.; Gustafson, R.; Hacker, J. J.
2016-10-01
This paper presents updated estimates of source parameters for GW150914, a binary black-hole coalescence event detected by the Laser Interferometer Gravitational-wave Observatory (LIGO) in 2015 [Abbott et al. Phys. Rev. Lett. 116, 061102 (2016).]. Abbott et al. [Phys. Rev. Lett. 116, 241102 (2016).] presented parameter estimation of the source using a 13-dimensional, phenomenological precessing-spin model (precessing IMRPhenom) and an 11-dimensional nonprecessing effective-one-body (EOB) model calibrated to numerical-relativity simulations, which forces spin alignment (nonprecessing EOBNR). Here, we present new results that include a 15-dimensional precessing-spin waveform model (precessing EOBNR) developed within the EOB formalism. We find good agreement with the parameters estimated previously [Abbott et al. Phys. Rev. Lett. 116, 241102 (2016).], and we quote updated component masses of 35-3+5 M⊙ and 3 0-4+3 M⊙ (where errors correspond to 90% symmetric credible intervals). We also present slightly tighter constraints on the dimensionless spin magnitudes of the two black holes, with a primary spin estimate <0.65 and a secondary spin estimate <0.75 at 90% probability. Abbott et al. [Phys. Rev. Lett. 116, 241102 (2016).] estimated the systematic parameter-extraction errors due to waveform-model uncertainty by combining the posterior probability densities of precessing IMRPhenom and nonprecessing EOBNR. Here, we find that the two precessing-spin models are in closer agreement, suggesting that these systematic errors are smaller than previously quoted.
Comment on ‘Dengue viral infection monitoring from diagnostic to recovery using Raman spectroscopy’
Darvin, Maxim E.; Lademann, Juergen; Brandt, Nikolay N.
2016-04-01
The results of the letter ‘Dengue viral infection monitoring from diagnostic to recovery using Raman spectroscopy’ authored by Firdous and Anwar (2015 Laser Phys. Lett. 12 085601) are discussed. We show that the original interpretation of the results is not correct and does not correspond to data in the literature.
Adeloye, AO
2013-01-01
Full Text Available 12.Wang X F, Fujii R, Ito S, Koyama Y, Yamano Y, Ito M, Kitamura T and Yanagida S 2005 Chem. Phys. Lett. 416 113.Song A, Zhang H, Zhang M and Shen T 1999 Dyes Pigments 42 149 14.Mosurkal R, He J, Yang K, Samuelson L A and Kumar J 2004 J. Photochem...
Review of Particle Properties, 1984-1985
Particle Data Group. Berkeley; Cahn, R N; Rittenberg, Alan; Trippe, Thomas G; Yost, George P; Porter, F C; Hernández, J J; Montanet, Lucien; Hendrick, R E; Crawford, R L; Roos, Matts; Törnqvist, N A; Höhler, G; Aguilar-Benítez, M; Shimada, T; Losty, Michael J; Gopal, Gian P; Walck, C; Shrock, R E; Frosch, R; Roper, L D; Trower, W P; Armstrong, Betty
1984-01-01
This review of the properties of leptons, mesons, and baryons is an updating of the Review of Particle Properties, Particle Data Group Phys. Lett. 111B, (1982). Data are evaluated, listed, averaged, and summarized in tables. Numerous tables, figures, and formulae of interest to particle physicists are also included. A data booklet is available.
2014-03-14
by combined phase and amplitude modulation in the Fourier space," Opt. Lett. 38, 3387-3389 (2013). • S. Fardad , M. S. Mills, P. Zhang. W. Man, Z...component self- accelerating beams through spectrum-engineered position mapping”, Phys. Rev. A, 88, 043809 (2013). • W. Man, S. Fardad , Z. Zhang, J
Experimental Control of Instabilities and Chaos in Fast Dynamical Systems
1997-06-01
is short (- 10 cm) [153]-[155]; these studies have more recently been considered from the chaos control viewpoint [42]. The apparatus required to...13] Christini, David J., and James A. Collins. Controlling Nonchaotic Neuronal Noise Using Chaos Control Techniques. Phys. Rev. Lett. 75:2782-2785
Supersymmetric quantum mechanics and regularizations
Znojil, M
2003-01-01
The text is inspired by the recent preprints by Gangopadhyaya and Mallow (arXiv: hep-th/0206133) and by Das and Pernice (arXiv: hep-th/0207112) and offers the new resolution of the singularity paradox of Jevicki and Rodriguez (Phys. Lett. B 146 (1984) 55).
FAN Hong-Yi; WANG Yong
2006-01-01
In Phys. Lett. A 313 (2003) 343 we have found that the self-reciprocal Hankel transformation (HT) is embodied in quantum mechanics by a transform between two entangled state representations of continuum variables. In this work we study Hankel transforms and properties of Bessel function via entangled state representations' transformation in quantum mechanics.
Lamia, L.; Puglia, S. M. R.; Spitaleri, C.; Romano, S.; Del Santo, M. Gimenez; Carlin, N.; Munhoz, M. Gameiro; Cherubini, S.; Kiss, G. G.; Kroha, V.; Kubono, S.; La Cognata, M.; Li, Cheng-Bo; Pizzone, R. G.; Wen, Qun-Gang; Sergi, M. L.; Szanto de Toledo, A.; Wakabayashi, Y.; Yamaguchi, H.; Zhou, Shu-Hua
2010-03-01
Nuclear (p,α) reactions destroying the so-called “light-elements” lithium, beryllium and boron have been largely studied in the past mainly because their role in understanding some astrophysical phenomena, i.e. mixing-phenomena occurring in young F-G stars [A.M. Boesgaard et al., Astr. Phys. J, 991, 2005, 621]. Such mechanisms transport the surface material down to the region close to the nuclear destruction zone, where typical temperatures of the order of ˜106 K are reached. The corresponding Gamow energy E=1.22(Z keV [C. Rolfs and W. Rodney, “Cauldrons in the Cosmos”, The Univ. of Chicago press, 1988] is about ˜10 keV if one considers the “boron-case” and replaces in the previous formula Z=1, Z=5 and T=5. Direct measurements of the two 11B(p,α)8Be and 10B(p,α)7Be reactions in correspondence of this energy region are difficult to perform mainly because the combined effects of Coulomb barrier penetrability and electron screening [H.J. Assenbaum, K. Langanke and C. Rolfs, Z. Phys., 327, 1987, 461]. The indirect method of the Trojan Horse (THM) [G. Baur et al., Phys. Lett. B, 178, 1986, 135; G. Calvi et al., Nucl. Phys. A, 621, 1997, 139; C. Spitaleri et al., Phys. Rev. C, 493, 1999, 206] allows one to extract the two-body reaction cross section of interest for astrophysics without the extrapolation-procedures. Due to the THM formalism, the extracted indirect data have to be normalized to the available direct ones at higher energies thus implying that the method is a complementary tool in solving some still open questions for both nuclear and astrophysical issues [S. Cherubini et al., Astr. Phys. J, 457, 1996, 855; C. Spitaleri et al., Phys. Rev. C, 63, 2001, 005801; C. Spitaleri et al., Phys. Rev. C, 63, 2004, 055806; A. Tumino et al., Phys. Rev. Lett., 98, 2007, 252502; M. La Cognata et al., Phys. Rev. Lett., 101, 2007, 152501; M.L. Sergi et al., AIPC, 1016, 2008, 433; H.W. Becker, Z. Phys. A, 327, 1987, 341; T. Rauscher and G. Raimann, Phys. Rev
High Tc: The Discovery of RBCO
Chu, C. W.
2007-03-01
It was said by Emerson that ``there is no history; there is only biography.'' This is especially true when the events are recounted by a person who, himself, has been heavily involved and the line between history and autobiography can become blurred. However, it is reasonable to say that discovery itself is not a series of accidents but an inevitable product of each development stage of scientific knowledge as was also pointed out by Holden et al. (1) The discovery of RBCO (2,3) with R = Y, La, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu is no exception. In this presentation, I will briefly recount several events that were crucial to the discovery of RBCO: those before 1986 (4) that sowed the seeds in our group important to our later high temperature superconductivity effort; those in 1986 (5) that were critical to our discovery of the 93 K RBCO soon after the discovery of the 35 K high temperature superconductor by M"uller and Bednorz (6); and those in 1987 when the barrier of the liquid nitrogen boiling temperature of 77 K was finally conquered. 1. G. J. Holton et al., American Scientist 84, 364 (1996). 2. M. K. Wu et al., Phys. Rev. Lett. 58, 908 (1987). 3. P. H. Hor et al., Phys. Rev. Lett. 58, 1891 (1987). 4. C. W. Chu et al., S. S. Comm. 18, 977 (1976); C. W. Chu and V. Diatchenko, Phys. Rev. Lett. 41, 572 (1978); T. H. Lin et al., Phys. Rev. B(RC) 29, 1493 (1984); J. H. Lin et al., J. Low Temp. Phys. 58, 363 (1985). 5. C. W. Chu et al., Phys. Rev. Lett. 58, 405 (1987); C. W. Chu et al., Science 235, 567 (1987). 6. J. G. Bednorz and K. A. M"uller, Z. Phys. B64, 189 (1986).
Analytical solutions of the two-dimensional Dirac equation for a topological channel intersection
Anglin, J. R.; Schulz, A.
2017-01-01
Numerical simulations in a tight-binding model have shown that an intersection of topologically protected one-dimensional chiral channels can function as a beam splitter for noninteracting fermions on a two-dimensional lattice [Qiao, Jung, and MacDonald, Nano Lett. 11, 3453 (2011), 10.1021/nl201941f; Qiao et al., Phys. Rev. Lett. 112, 206601 (2014), 10.1103/PhysRevLett.112.206601]. Here we confirm this result analytically in the corresponding continuum k .p model, by solving the associated two-dimensional Dirac equation, in the presence of a "checkerboard" potential that provides a right-angled intersection between two zero-line modes. The method by which we obtain our analytical solutions is systematic and potentially generalizable to similar problems involving intersections of one-dimensional systems.
Proceedings of 16th Nordic Semiconductor Meeting Held in Laugarvatn, Iceland on 12-15 June 1994
1995-01-10
Kesamanly, F. P. and Samorukov, B. E., Soy . Phys.Semicond. 15, 352 (1981). through the above excitation routes, can make transitions to 4. Kasatkin, V...EL6 (0.34eV) EL2 (0.80eV) 8ceedings. 8. Lagowski, J., Kaminska, M. Parsey, Jr. J. M., Gatos , H. C. and Lich- tensteiger, M., Appl. Phys. Lett. 41...in the highly Soy . Phys. Semicond. 17, 686 (1983). 9. Schaffer, W., Negley, G., Irvine, K. and Palmour, J., to be published indoped emitters on the
Wide Band-Gap Semiconductors. 1991 Materials Research Society Symposium Proceedings
1992-09-01
Fisica . TU aivc ida (sit,~le AvSeiro, 3800) Aveiroi. PO()RT’UGCAL. A13IST H ACT WideI-’-I aild gap II-V\\I sui’liicoildi c tars haive dlirect lanclgaps... Fisica , Politacnico -C. so Duca degli Abruzzi 24, 10129 lorino (Italy) Elettrorava S.p.A., 10040 Savonera loririi (Italy) Amorphous and...Rustagi, Phys. Rev. B 35, 4098 (1987). 4. Y. Kayanuma, Phys. Rev. B 38, 9797 (1988). 5. M.V. Rama Krishna and R.A. Friesner, Phys. Rev. Lett. 67, 629
1997-03-01
495 (1993). 6. M. Diani, D. Aubel, J.L. Bischoff, L. Kubier, and D. Bolmont, Surface Science 29, 110(1993). 7. G. R. Harp, D. K. Saldin , and B. P...Tonner, Phys. Rev. Lett. 65, 1012 (1990). 8. B. P. Tonner, Z. L. Han, G. R. Harp, and D. K. Saldin , Phys. Rev. B 43, 14423 (1991). 9. G. R. Harp, D...K. Saldin , and B. P. Tonner, Phys. Rev. B 42, 9199 (1990). 10. A. Stuck, D. Naumovic, H. A. Aebischer, T. Greber, J. Osterwalder, and L
1998-02-01
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DARPA-NRL Laser Program Annual Technical Report to Defense Advanced Research Projects Agency
1982-03-11
Dickson, J. Chem. Phys. 48, 1949 (1968). 6. M. Allan and S. F. Wong, J. Chem. Phys. 74, 1687 (1981). 7. R. W. Waynant and J. G. Eden, Appl. Phys. Lett. 36...Sceatcdmpm or the experimental apparatus The gas cell 0 .2 ad as to 1.4 contaed Ne/Xe./14C gs mixtures typical of those used in e-beam HOc POES &UNI ITa... Allan and Wong in the enhancement of dis- sociative attachment cross section. The large vibrational spacing of HCI molecule also makes it possible for
1994-05-01
and H. Launois, Microelectr. Engr. 6, 195 (1987). 6. C. Tiberio, E. D. Wolf, S. F. Anderson, W. J. Schaff , P. J. Tasker, and L. F. Eastman, J. Vac...P. Taylor, C. Dharma-Wardana, P. Zawadski, J. A. Adams , and P. T. Coleridge, Phys. Rev. B 47, 6811 (1993). 13 1M. Wagner, U. Merkt, and A. V...Coleridge, and J. A. Adams , Phys. Rev. Lett. 69, 1989 (1992). ൕM. Sumetskii, J. Phys. Cond. Matter 3, 2651 (1991). ’-"Y. Feng, A. S. Sachrajda, R. P
Effect of Chaos on Relativistic Quantum Tunneling
2012-06-01
andAkis R., Phys. Rev. Lett., 103 (2009) 054101;Huang L., Lai Y.-C. and Grebogi C., Chaos, 21 (2011) 013102. [3] Novoselov K. S., Geim A. K., Morozov S. V...Feng R., Dai Z., Marchenkov A. N., Conrad E. H., First P. N. and de Heer W. A., J. Phys. Chem. B, 108 (2004) 19912; Novoselov K. S., Geim A. K., Morozov...P., Nature, 438 (2005) 201; Castro Neto A. H., Guinea F., Peres N. M. R., Novoselov K. S. and Geim A. K., Rev. Mod. Phys., 81 (2009) 109; Das Sarma S
1975-11-01
Phys. Soc. II, 19, 870 (1974) 6. J. M. Creedon, I. D. Smith, and D. S. Prono , Phys. Rev. Letters 3_5, 91 (1975) . 7. D. S. Prono , J. M. Creedon, I...for different anode thicknesses. 574 INTENSE, PULSED, ION-DIODE SOURCES AND THEIR APPLICATION TO MIRROR MACHINES* D. S. Prono , J. W. Shearer, and...1079 (1975). 3. S. A. Goldstein and J. Guillory, Phys. Rev. Lett. 35, 1160 (1975). 4. D. S. Prono , J. M. Creedon, I. Smith, and N. Bergstrom, J
QED radiative corrections for elastic e (μ) p scattering in hadronic variables
Akhundov, A. A.; Alharbi, H. H.; Alhendi, H. A.
2004-08-01
A numerical analysis of QED radiative corrections for elastic e (μ) p scattering in hadronic variables at energies of the current experiment at JLab is performed. The explicit formulas from the review of Akhundov et al. [Fortschr. Phys.44, 373 (1996)] resulting from the integration over the phase space of leptonic variables plus photon are used to obtain the values of the cross sections and the radiative correction factor for unpolarized lepton-proton scattering. Our numerical results agree with the corresponding results arising from the formulas of Afanasev et al. [Phys. Lett. B514, 269 (2001); Phys. Rev. D64, 113009 (2001)].
Optimal Universal Uncertainty Relations
Li, Tao; Xiao, Yunlong; Ma, Teng; Fei, Shao-Ming; Jing, Naihuan; Li-Jost, Xianqing; Wang, Zhi-Xi
2016-01-01
We study universal uncertainty relations and present a method called joint probability distribution diagram to improve the majorization bounds constructed independently in [Phys. Rev. Lett. 111, 230401 (2013)] and [J. Phys. A. 46, 272002 (2013)]. The results give rise to state independent uncertainty relations satisfied by any nonnegative Schur-concave functions. On the other hand, a remarkable recent result of entropic uncertainty relation is the direct-sum majorization relation. In this paper, we illustrate our bounds by showing how they provide a complement to that in [Phys. Rev. A. 89, 052115 (2014)]. PMID:27775010
MBE Growth of CdTe and Hg sub 1-x Cd sub x Te Films and Multilayer Structures.
2014-09-26
K. Ridley, Solid State Electronics 27(2), 113 (1984). 3. R. F. C. Farrow, G. R. Jones, G. M. Williams, and 1. M. Young, AppI . Phys. Lett. 39, 954...R. F. C. Farrow, W. J. Takei, F. A. Shirland, and A. J. Noreika, J. AppI . Phys. 55(12), 4225 (1984). 8. G. M. Williams, C. R. Whitehouse, N. G. Chew... Appi . Phys. 55. 4225 (1984). The critical role of growth-related parameters including ’Z. C. Feng, A. Masicarenhas. W. J. Choyke. R. F. C. Farrow, F
Classical universe emerging from quantum cosmology without horizon and flatness problems
Fathi, M.; Jalalzadeh, S. [Shahid Beheshti University, Department of Physics, Tehran (Iran, Islamic Republic of); Moniz, P.V. [Centro de Matematica e Aplicacoes-UBI, Covilha (Portugal); Universidade da Beira Interior, Departmento de Fisica, Covilha (Portugal)
2016-10-15
We apply the complex de Broglie-Bohm formulation of quantum mechanics in Chou and Wyatt (Phys Rev A 76: 012115, 2007), Gozzi (Phys Lett B 165: 351, 1985), Bhalla et al. (Am J Phys 65: 1187, 1997) to a spatially closed homogeneous and isotropic early universe whose matter contents are radiation and dust perfect fluids. We then show that an expanding classical universe can emerge from an oscillating (with complex scale factor) quantum universe without singularity. Furthermore, the universe obtained in this process has no horizon or flatness problems. (orig.)
Bohórquez, Hugo J
2015-12-21
The scaling properties of density functionals are key for fundamentally understanding density functional theory. Accordingly, the dependence of density functionals on the number of particles is of paramount relevance. The numerical exploration by Rong et al. addressed N-scaling for a set of quantum information quantities; they found linear relationships between each one of them and the electronic population for atoms, molecules, and atoms in molecules. The main motivation for their computational work was that the theoretical scaling of these quantities is unknown; however, these scaling properties can be analytically determined. Here I reveal the derivation of the N-scaling rules for the quantities studied by Rong et al. by following the procedure introduced in Comput. Theor. Chem., 2015, 1053, 38. In addition, a new atomic scaling rule explains the linear relationship between atomic populations and atomic values of the same quantum information quantities.
Christian, Joy
2016-10-01
This article has been withdrawn at the request of the Editors. Soon after the publication of this paper was announced, several experts in the field contacted the Editors to report errors. After extensive review, the Editors unanimously concluded that the results are in obvious conflict with a proven scientific fact, i.e., violation of local realism that has been demonstrated not only theoretically but experimentally in recent experiments. On this basis, the Editors decided to withdraw the paper. As a consequence, pages 67-79 originally occupied by the withdrawn article are missing from the printed issue. The publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
Zambrano, Harvey A; Walther, Jens Honore; Jaffe, Richard L.
2010-01-01
This article was originally published online on 29 December 2009 with an incorrect journal title in Ref. 22; the correct journal title should have been “Small.” AIP apologizes for this error. All online versions of the article were corrected on 5 January 2010; the article was correct as it appeared...... in the printed version of the journal. Reference 22 appears correctly below: 22T. A. Hilder and J. M. Hill, Small 5, 300, 2009....
Messenger, Scott; Nguyen, Ann
2017-01-01
Comets and asteroids may have contributed much of the Earth's water and organic matter. The Earth accretes approximately 4x10(exp 7) Kg of dust and meteorites from these sources every year. The least altered meteorites contain complex assemblages of organic compounds and abundant hydrated minerals. These carbonaceous chondrite meteorites probably derive from asteroids that underwent hydrothermal processing within the first few million years after their accretion. Meteorite organics show isotopic and chemical signatures of low-T ion-molecule and grain-surface chemistry and photolysis of icy grains that occurred in cold molecular clouds and the outer protoplanetary disk. These signatures have been overprinted by aqueously mediated chemistry in asteroid parent bodies, forming amino acids and other prebiotic molecules. Comets are much richer in organic matter but it is less well characterized. Comet dust collected in the stratosphere shows larger H and N isotopic anomalies than most meteorites, suggesting better preservation of primordial organics. Rosetta studies of comet 67P coma dust find complex organic matter that may be related to the macromolecular material that dominates the organic inventory of primitive meteorites. The exogenous organic material accreting on Earth throughout its history is made up of thousands of molecular species formed in diverse processes ranging from circumstellar outflows to chemistry at near absolute zero in dark cloud cores and the formative environment within minor planets. NASA and JAXA are currently flying sample return missions to primitive, potentially organic-rich asteroids. The OSIRIS-REx and Hayabusa2 missions will map their target asteroids, Bennu and Ryugu, in detail and return regolith samples to Earth. Laboratory analyses of these pristine asteroid samples will provide unprecedented views of asteroidal organic matter relatively free of terrestrial contamination within well determined geological context. Studies of extraterrestrial materials and returned samples are essential to understand the origins of Solar System organic material and the roles of comets and asteroids to providing the starting materials for the emergence of life.
Paliathanasis, A.; Krishnakumar, K.; Leach, P. G. L.
2016-04-01
We discuss the relationship between the Noether point symmetries of the geodesic Lagrangian, in a (pseudo)Riemannian manifold, with the elements of the Homothetic algebra of the space. We observe that the classification problem of the Noether symmetries for the geodesic Lagrangian is equivalent with the classification of the Homothetic algebra of the space, which in the case of a Friedmann-Lemaître-Robertson-Walker spacetime is a well-known result in the literature.
Response to "Comment on `The ion-kinetic D'Angelo mode'" [Phys. Plasmas 22, 044703 (2015)
Chibisov, D. V.; Mikhailenko, V. S.
2015-04-01
A response to "Comment on `The ion-kinetic D'Angelo mode'" by Aman-ur-Rehman, Shaukat Ali Shan, and Hamid Saleem is given. We find that all Comments are grounded on the misinterpretations of the results of our paper "The ion-kinetic D'Angelo mode" and are erroneous.