Sample records for MECANICA CUANTICA (quantum mechanics)
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1

MECÁNICA CUÁNTICA ACAUSAL SOCIALMENTE DETERMINADA: REVISIÓN CRÍTICA/ Socially determined acausal quantum mechanics: Critical Review

Cala Vitery, Favio; Valero, Stefan Pohl
2008-12-01

Resumen en español En su artículo titulado Weimar Culture; Causality and Quantum Theory, 1918-1927: Adaptation by German Physicists to a Hostile Intellectual Environment, Paul Forman intentó dibujar una historia de la vieja mecánica cuántica según la cual la influencia cultural de la época resultó determinante en la introducción, aceptación y asimilación de la acausalidad en esta teoría. Estas afirmaciones conocidas como las tesis de Forman, son puestas en perspectiva historiogr� (mas) �fica, es decir, desde el panorama ofrecido por las tensiones propias de la historiografía y la filosofía de la ciencia contemporá- nea se perfila su importancia. Se argumenta que el dilema del determinismo es central en esta discusión y finalmente se presenta una breve revisión crítica de las tesis de Forman revelando sus principales debilidades. Resumen en inglés In his article entitledWeimar Culture; Causality and Quantum Theory, 1918- 1927: Adaptation by German Physicists to a Hostile Intellectual Environment, Paul Forman intended to depict a history of the old quantum mechanics according to which contemporary cultural influence turned out to be decisive in the introduction, acceptance and assimilation of acausality within the theory. These statements -known as the Forman thesis- are placed in historiographic perspective; i.e. t (mas) heir importance is shown using the framework provided by the characteristic tensions of historiography and philosophy of science. It is argued that the dilemma of determinism is essential in this discussion. Finally, a brief critical review of the Forman thesis is offered emphasizing some of its major weaknesses not previously discussed in the literature.

Scientific Electronic Library Online (Spanish)

2

MÁS ALLÁ DE LOS DATOS DESNUDOS: ELEMENTOS PARA LA INTERPRETACIÓN DE LA MECÁNICA CUÁNTICA?

Eslava, Edgar
2007-09-01

Resumen en español En un intento de probar los límites de la interpretación más aceptada de la mecánica cuántica, de acuerdo con la cual los sistemas microscópicos se encuentran siempre en una superposición de estados, el premio Nobel de física A. Leggett ha propuesto la tesis del macrorealismo, según la cual las superposiciones mecanico-cuánticas de estados microscópicamente diferentes nunca tienen lugar. Leggett ha mostrado también los elementos básicos de algunas pruebas exp (mas) erimentales que podrían decidir definitivamente entre la mecánica cuántica y el macrorealismo. En este texto presento los elementos fundamentales de la interpretación estándar de la mecánica cuántica y del macrorealimo, a fin de poner en evidencia que los resultados experimentales están más abiertos a interpretación de lo que Leggett está dispuesto a aceptar. Dentro de las interpretaciones alternativas se destaca la posibilidad de comprender los resultados como ejemplos de violaciones al principio de inducción en que descansa el macrorealismo, abriendo así la puerta para resolver la tensión entre la MC y el macrorealismo en términos causalidad inversa, de acuerdo con la cual no es necesario apelar a ningún papel especial desempeñado ni por los observadores ni por los aparatos de medición a fin de explicar las diferencias entre los sistemas mecánico-cuánticos y los macroscópicos, una diferencia que puede ahora ser definida parcialmente en términos de su direccionalidad causal y temporal. Resumen en inglés In an attempt to test the limits of the current interpretation of quantum mechanics, according to which microscopic systems are always in a superposition of states, A. Leggett has proposed the thesis of macrorealism, according to which quantum mechanical superpositions of macroscopically distinct states never occur. Leggett has also shown the basic features of some experimental tests that would decide definitively between quantum mechanics and macrorealism. In this paper (mas) I present some basic elements of the standard interpretation of quantum mechanics and of macrorealism, in order to make evident that the experimental results may well be more open to interpretation than Leggett himself would accept. Among such interpretations I highlight the possibility of undertanding the results as examples of violations of the principle of induction in which macrorealism rests, opening the door for solving the tension between QM and macrorealism in terms of the backwards causatio, according to which there is no need for appealing to any special role played by either observers or measurement apparatuses in order to explain what differentiates quantum systems from macroscopic ones, a difference that could now be defined partly in terms of their causal and temporal directionality.

Scientific Electronic Library Online (Spanish)

3

WITTGESTEIN: DERIVACIONES EPISTEMOLÓGICAS DE SU PENSAMIENTO A PARTIR DE PARADOJAS QUE PLANTEA LA MECÁNICA CUÁNTICA/ WITTGESTEIN: EPISTEMOLOGICAL RAMIFICATIONS OF HIS THINKING FROM PARADOXES POSED BY QUANTUM MECHANICS

Costa, Andrea; Rivera, Silvia
2008-12-01

Resumen en español Se argumenta acerca de la necesidad de reubicar a la epistemología en el esquema filosófico tradicional. De la consideración de paradojas que la teoría cuántica impone -relativas a la necesidad de un cambio de lógica- y siguiendo los planteos wittgenstenia-nos acerca de la fundamentación de las ciencias formales, del status y tipo de necesidad que sus proposiciones establecen mostramos cómo la epistemología emerge del lado de la filosofía práctica. Ética y pol (mas) ítica que dejan atrás su lugar de exterior complementario al núcleo duro de la ciencia implicando una inversión de la relación tradicional entre las ciencias naturales y las sociales. Resumen en inglés We argue about the necessity of relocating epistemology in the traditional philosophical outline. From considering physical theories -related to the necessity of a change of logic- and following wittgenstenian statements about the foundations of formal sciences, about the status and necessity that their propositions settle down we show that the epistemology emerges on the side of the practical philosophy. It appears together with ethics and politics implying that they can (mas) not be regarded as exteriors to the hard core of science and imposing an inversion of the traditional relationship between natural and social sciences.

Scientific Electronic Library Online (Spanish)

4

Indeterminación cuántica, libertad y responsabilidad1/ Quantum Indeterminacy, Freedom, and Responsibility

Patarroyo G, Carlos G
2008-04-01

Resumen en español En el debate contemporáneo entre determinismo e indeterminismo, la mecánica cuántica es utilizada por los libertaristas como recurso para escapar al determinismo propuesto por la física clásica, y como búsqueda de un fundamento para la posibilidad de la libertad de la voluntad y de la responsabilidad moral. En el presente artículo se mostrará que toda defensa de la libertad que recurra a la mecánica cuántica ha de poder sortear al menos dos problemas: el que pla (mas) ntea el que he decidido llamar el principio de escala, y el que resulta de lo que Robert Kane define como el principio de suerte. Se mostrará, además, que responder al primer problema no implica responder al segundo. Finalmente, a través de un análisis de las más recientes propuestas que desean sortear este último, se mostrará que ninguna de las propuestas ofrece una explicación convincente acerca de cómo la mecánica cuántica puede ayudar a resolver la cuestión de la libertad de la voluntad. Antes bien, parece que la mecánica cuántica contribuye a su complicación. Resumen en inglés In the contemporary debate between determinism and indeterminism, quantum mechanics is used by libertarianists, both as a resource to escape the determinism imposed by classical physics and as a tool to search for a ground for the possibility of free will and moral responsibility. This paper will show that every defense of free will based on quantum mechanics has to overcome at least two objections: on the one hand, the one I have decided to call the scale principle, and, (mas) on the other hand, Robert Kane's luck principle. As will be shown, answering the first objection does not imply answering the second. Through an analysis of the most recent proposals that attempt to solve the latter, this paper will conclude that neither of the proposals offers a convincing explanation of how quantum mechanics can help to solve the problem of free will. Rather, quantum mechanics seem to contribute to complicating the problem.

Scientific Electronic Library Online (Spanish)

5

Los límites del pronóstico newtoniano y la búsqueda del orden en el caos/ The Limits of the Newtonian Forecast and the search of order in the chaos

Sánchez-Santillán, N; Garduño-López, M.R; Ritter-Ortiz, W; Guzmán-Ruiz, S.A
2008-06-01

Resumen en español La mecánica determinista newtoniana sólo puede describir y pronosticar el comportamiento de los sistemas naturales simples y con pocos componentes, aproximadamente el 10% del total de los que conforman la realidad universal conocida hasta ahora; el 90% restante, cuya complejidad y grado de incertidumbre los hace prácticamente inaccesibles a este enfoque, requieren de una nueva visión holística o total, con un acercamiento que incluya conceptos, tanto de la mecánica (mas) clásica de Newton y Descartes, como los emanados de la corriente indeterminista, entre los cuales se encuentran la no linealidad y las secuencias aleatorias, el cálculo de la probabilidad y la estadística, el caos y el orden, la inestabilidad exponencial, la teoría cuántica, los atractores y fractales y la teoría de la información. Resumen en inglés Newtonian deterministic mechanichs can only describe and predict the behavior of simple natural systems with few components, which represent approximately 10% of those conforming the universal reality known until now. The remaining 90%, whose complexity and degree of uncertainty make them practically inaccessible to this approach, require a new holistic or total vision, with an approach that includes concepts of Newton's and Descartes's classical mechanics, as much as tho (mas) se emanated from the indeterministic stream, such as nonlinearity and aleatory sequences, calculus of probability and statistics, chaos and order, exponential instability, quantum Theory, attractors and fractals, and information theory.

Scientific Electronic Library Online (Spanish)

6

MODELADO MOLECULAR Y RELACIONES ESTRUCTURA- ACTIVIDAD ANTIBACTERIANA DE QUINOLINAS ANALOGAS AL ACIDO NALIDIXICO

CORDERO DE TROCONIS, M.I.; PEDRIQUE DE AULACIO, M; COLMAN DE S, TRINA
2000-03-01

Resumen en español En el presente trabajo se estudiaron utilizando técnicas de modelado molecular varias quinolinas análogas al ácido nalidíxico, compuestos de conocida actividad antibacteriana, las cuales fueron sintetizadas y ensayadas in vitro como antibacterianos, con el fin de encontrar patrones estructurales comunes que pudiesen ser relacionados con su actividad biológica. Se utilizó como compuesto de referencia el ácido nalidíxico cuya estructura fue tomada de la Base de Dato (mas) s de Cambridge y para localizar la posición del grupo éster se utilizó la conformación bioactiva reportada para la norfloxacina. Se realizó un análisis conformacional utilizando Mecánica Molecular y Dinámica Molecular y se utilizaron las conformaciones de mínima energía para la realización de cálculos de Mecánica Cuántica. Como primer reporte se evaluaron las propiedades calculadas y se relacionaron con la actividad in vitro contra Escherichia coli, y se realizó un análisis de regresión. De este estudio pudimos concluir que la diferencia entre los niveles de energía de los orbitales de frontera, el momento dipolar y factores estéricos pueden ser relacionados con la actividad antibacteriana in vitro de estos compuestos Resumen en inglés In this paper we studied using molecular modeling techniques several quinoline analogs of nalidixic acid, compound with known antibacterial activity, synthesized and in vitro tested, in order to look for common structural patterns that could be related to their biological activity. We used nalidixic acid as reference compound, its structure was taken from Cambridge Structural Database, and to locate the ester group we used the reported bioactive conformation of norfloxaci (mas) n. We made a conformational analysis using Molecular Mechanics and Molecular Dynamics, and then we used the lower enegy conformations to run Quantum Mechanical calculations. As a first report the evaluated properties were related with the in vitro activity against Escherichia coli for each compound, and a regression analysis was made, concluding that the energetic difference betwen the frontier orbitals, the dipolar moment and steric factors could be related to to the quinoline analogs in vitro antibacterial activity

Scientific Electronic Library Online (Spanish)

7

DISEÑO RACIONAL DE COMPUESTOS ANTIBACTERIANOS DERIVADOS DEL 5-NITROFURANO USANDO MODELADO MOLECULAR

CAPOBIANCO PÉREZ, M; CORDERO DE TROCONIS, M.I
2001-06-01

Resumen en español En esta investigación proponemos un modelo farmacofórico (tipo B) para los derivados del 5-nitrofurano con potencial actividad antibacteriana. El farmacóforo propuesto se basa en la presencia de átomos y grupos funcionales esenciales con una distancia definida y con una determinada orientación requerida, además de enfatizar las propiedades electrónicas comunes identificadas como determinantes para el reconocimiento y activación de un receptor especifico en la bact (mas) eria. Se determinó haciendo uso de las técnicas de modelado molecular, realizando una comparación sistemática de las geometrías moleculares y de las propiedades electrónicas determinadas por cálculos de mecánica cuántica de diferentes compuestos antibacterianos usados clínicamente en la actualidad. Haciendo uso de este farmacóforo se diseñaron varios 5-nitrofuranos que pueden ser sintetizados con relativa facilidad y evaluados por su potencial actividad antibacteriana Resumen en inglés In this research we propose a pharmacophoric model (type B) for 5-nitrofurane compounds with potential antibacterial activity. The proposed pharmacophore is based on the presence of essential atoms and functional groups with a defined distance and in a determined orientation and more over, common electronic properties identified and required for the recognition and activation of a specific receptor in the bacteria. It was studied using Molecular Modeling techniques, with (mas) a systematic comparison of the molecular geometries and electronic properties using quantum mechanics calculations of different antibacterial compounds used clinically at this moment. Using this pharmacophore we designed several 5-nitrofurane analogs that can be easily synthesized and evaluated for their potential antibacterial activity

Scientific Electronic Library Online (Spanish)

8

Investigación matemática argentina recogida en MathSci (2000-2005)/ Mathematical Research in Argentina Covered by MathSci (2000-2005)

Merlino-Santesteban, Cristian
2007-06-01

Resumen en español Se analiza la investigación matemática argentina recogida en la base de datos MathSci correspondiente al período 2000-2005. Durante este período el total de la producción científica matemática tuvo un incremento del 10%. Teoría cuántica, Ecuaciones y derivadas parciales, y Relatividad y teoría gravitatoria son las tres áreas temáticas con mayor contribución matemática argentina, seguidas por Anillos y álgebras asociativos, y Mecánica estadística, estructu (mas) ra de la materia. La Universidad de Buenos Aires fue la institución líder en el número de trabajos publicados (35%) y presentó la mayor diversidad productiva. Cerca del 89% de los trabajos se distribuyó en 406 revistas y prácticamente 46 títulos concentraron el 50% de los documentos. El 36% de la producción fue realizada en coautoría con colegas extranjeros. Estados Unidos y España fueron las naciones con las cuales se establecieron relaciones más estrechas. La tasa de colaboración internacional aumentó del 30 al 42%. Resumen en inglés Argentinean mathematical research covered by MathSci database for the period 2000-2005 is analyzed. During those years, the mathematical scientific production showed a growing rate of 10%. Quantum theory, Partial differential equations, and Relativity and gravitational theory are the three subject areas with more Argentinean mathematical contribution followed by Associative rings and algebra, and Statistical mechanics, structure of matter. The University of Buenos Aires w (mas) as the leading institution in the number of published papers (35%) and it presented the greatest productive diversity. About 89% of the articles have appeared in 406 journals and almost 46 titles concentrated 50% of the documents. Thirty six per cent of the production was performed in conjunction with foreign colleagues. United States and Spain were the most important collaborating nations. The international collaboration rate showed an increasu from 30 to 42%.

Scientific Electronic Library Online (Spanish)

10

Vibrational quenching of CO2(010) by collisions with O(3P) at thermal energies: A quantum-mechanical study

Lara Castells, M. Pilar de; Hernández, Marta I.; Delgado Barrio, Gerardo; Villarreal, Pablo; López-Puertas, Manuel
2006-04-24

Digital.CSIC (Spain)

11

Vibrational predissociation of NeBr2 (X, v = 1) using an ab initio potential energy surface

Prosmiti, Rita; Cunha, Carlos; Buchachenko, Alexei A.; Delgado Barrio, Gerardo; Villarreal, Pablo
2002-12-08

Digital.CSIC (Spain)

12

Two-dimensional phase-space analysis and bifurcation study of the dynamical behavior of a semiconductor ring laser

Van der Sande, Guy; Gelens, Lendert; Tassin, Philippe; Scirè, Alessandro; Danckaert, Jan
2008-04-24

Digital.CSIC (Spain)

13

Time uncertainty in quantum gravitational systems

Barbero González, Jesús Fernando; Mena Marugán, Guillermo A.; Villaseñor, Eduardo J. S.

4 pags. | It is generally argued that the combined effect of the Heisenberg principle and general relativity leads to a minimum time uncertainty. Most of the analyses supporting this conclusion are based on a perturbative approach to quantization. We consider a simple family of gravitational models,...

DRIVER (Spanish)

14

Time uncertainty in quantum gravitational systems

Barbero González, Jesús Fernando; Mena Marugán, Guillermo A.; Villaseñor, Eduardo J. S.
2004-02-23

Digital.CSIC (Spain)

15

Time and frequency resolved dynamics of ArBr2

Cabrera, José; Bieler, Craig R.; McKinney, Natalie; Veer, Wytze E. van der; Pio, Jordan M.; Janda, Kenneth; Roncero, Octavio
2007-10-25

Digital.CSIC (Spain)

16

Thermobarometric implications of clinopyroxene chemistry in the Plio-Quaternary magmas of Gran Canaria (Canary Islands, Spain)

Seidl, Stefan; Högele, A.; Kroner, M.; Karrai, Khaled; Warburton, Richard J.; García, Jorge M.; Petroff, Pierre M.
2007-02-01

Digital.CSIC (Spain)

17

The effect of amino groups on the stability of DNA duplexes and triplexes based on purines derived from inosine

Cubero, Elena; Güimil García, Ramón; Luque, F. Javier; Eritja Casadellà, Ramón; Orozco, Modesto
2001-06-15

Digital.CSIC (Spain)

18

The Magnus expansion and some of its applications

Blanes, S.; Casas, F.; Oteo, J.A.; Ros, José
2008-11-25

Digital.CSIC (Spain)

19

Temperature dependent optical properties of stacked InGaAs/GaAs quantum rings

Ouerghui, W.; Martínez-Pastor, Juan; Gomis, J.; Maaref, M. A.; Granados, Daniel; García, Jorge M.
2008-07-01

Digital.CSIC (Spain)

20

Supersymmetry parameter analysis: SPA convention and project

Guasch, J.; Hirsch, Martin; Valle, José W. F.; Aguilar-Saavedra, José Antonio
2006-04-01

Digital.CSIC (Spain)

24

Sequential Implementation of Global Quantum Operations

Lamata, Lucas; León García, Juan José; Pérez-García, D.; Salgado, D.; Solano, E.

4 pages, 3 figures.-- PACS nrs.: 03.67.Lx; 03.65.Ta; 42.50.Dv.-- ArXiv pre-print available at: http://arxiv.org/abs/0711.3652 | We study the possibility for a global unitary applied on an arbitrary number of qubits to be decomposed in a sequential unitary procedure, where an ancillary system is allo...

DRIVER (Spanish)

25

Sequential Implementation of Global Quantum Operations

Lamata, Lucas; León García, Juan José; Pérez-García, D.; Salgado, D.; Solano, E.
2008-10-31

Digital.CSIC (Spain)

26

Self-assembling processes involved in the molecular beam epitaxy growth of stacked InAs/InP quantum wires

Ulloa, J. M.; Koenraad, P. M.; Fuster, David; González, Luisa; González, Yolanda; González, María Ujué
2008-09-29

Digital.CSIC (Spain)

27

Self-Organized InGaAs Quantum Rings -- Fabrication and Spectroscopy

Lorke, Axel; García, Jorge M.; Blossey, Ralf; Luyken, Richard Johannes; Petroff, Pierre M.
2003-01-01

Digital.CSIC (Spain)

28

Room-temperature 1.6 µm light emission from InAs/GaAs quantum dots with a thin GaAsSb cap layer

Liu, H. Y.; Steer, M. J.; Badcock, T. J.; Mowbray, D. J.; Skolnick, M. S.; Suárez, Ferran; Ng, J. S.; Hopkinson, M.; David, J. P. R.
2006-02-24

Digital.CSIC (Spain)

29

Role of quantum vortices in atomic scattering from single adsorbates

Sanz, Ángel S.; Borondo, Florentino; Miret-Artés, Salvador

5 pages, 4 figures -- PACS numbers: 79.20.Rf, 34.50.Dy, 34.10.+x, 03.65.Ta | The scattering of He atoms from adsorbed CO molecules on the Pt(111) surface is described within the formalism of quantum trajectories provided by Bohmian mechanics. We show that the main mechanism leading to the formation ...

DRIVER (Spanish)

30

Role of quantum vortices in atomic scattering from single adsorbates

Sanz, Ángel S.; Borondo, Florentino; Miret-Artés, Salvador
2004-03-18

Digital.CSIC (Spain)

31

Resonant plasmonic and vibrational coupling in a tailored nanoantenna for infrared detection

Neubrech, Frank; Pucci, Annemarie; Cornelius, Thomas Walter; Karim, Shafqat; García-Etxarri, Aitzol; Aizpurúa, Javier
2008-10-07

Digital.CSIC (Spain)

32

Reactivity versus steric effects in fluorinated ketones as esterase inhibitors: a quantum mechanical and molecular dynamics study

Rayo, Josep; Muñoz, Lourdes; Rosell, Gloria; Hammock, Bruce D.; Guerrero, Ángel; Luque, F. Javier; Pouplana, Ramón
2010-07-31

Digital.CSIC (Spain)

34

Quantum trajectories in atom–surface scattering with single adsorbates: The role of quantum vortices

Sanz, Ángel S.; Borondo, Florentino; Miret-Artés, Salvador

13 pages, 15 figures | In this work, a full quantum study of the scattering of He atoms off single CO molecules, adsorbed onto the Pt(111) surface, is presented within the formalism of quantum trajectories provided by Bohmian mechanics. By means of this theory, it is shown that the underlying dynami...

DRIVER (Spanish)

36

Quantum time uncertainty in a gravity’s rainbow formalism

Galán, Pablo; Mena Marugán, Guillermo A.

9 pags. | The existence of a minimum time uncertainty is usually argued to be a consequence of the combination of quantum mechanics and general relativity. Most of the studies that point to this result are nonetheless based on perturbative quantization approaches, in which the effect of matter on th...

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37

Quantum time uncertainty in a gravity’s rainbow formalism

Galán, Pablo; Mena Marugán, Guillermo A.
2004-12-03

Digital.CSIC (Spain)

38

Quantum time uncertainty in Schwarzschild–anti-de Sitter black holes

Galán, Pablo; Garay, Luís Javier; Mena Marugán, Guillermo A.

10 pags. ; appendix | The combined action of gravity and quantum mechanics gives rise to a minimum time uncertainty in the lowest order approximation of a perturbative scheme, in which quantum effects are regarded as corrections to the classical spacetime geometry. From the nonperturbative point of ...

DRIVER (Spanish)

39

Quantum time uncertainty in Schwarzschild–anti-de Sitter black holes

Galán, Pablo; Garay, Luís Javier; Mena Marugán, Guillermo A.
2007-08-17

Digital.CSIC (Spain)

40

Quantum geometry and quantum gravity

Barbero González, Jesús Fernando
2008-06-25

Digital.CSIC (Spain)

41
42

Potential energy surface and reactive collisions for the Au+H2 system

Zanchet, Alexander; Roncero, Octavio; Omar, Salama; Paniagua, Miguel; Aguado, Alfredo
2010-01-15

Digital.CSIC (Spain)

44

Photonic use of intermediate band materials based on a chalcogenide-type semiconductor

Conesa Cegarra, José Carlos; Lucena García, Raquel; Wahnón Benarroch, Perla; Palacios Clemente, Pablo; Fernández Sánchez, Julio Juan; Sánchez Noriega, Kefren; Aguilera Bonet, Irene
2010-04-07

Digital.CSIC (Spain)

45

Particle diffraction studied using quantum trajectories

Sanz, Ángel S.; Borondo, Florentino; Miret-Artés, Salvador

37 pages, 22 figures -- PACS numbers: 03.65.-w, 03.65.Ta, 79.20.Rf | Diffraction and interference of matter waves are key phenomena in quantum mechanics. Here we present some results on particle diffraction in a wide variety of situations, ranging from simple slit experiments to more complicated cas...

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46

Particle diffraction studied using quantum trajectories

Sanz, Ángel S.; Borondo, Florentino; Miret-Artés, Salvador
2002-05-31

Digital.CSIC (Spain)

47

Parallel nanogap fabrication with nanometer size control using III–V semiconductor epitaxial technology

Fernández-Martínez, Ivan; González, Yolanda; Briones Fernández-Pola, Fernando
2008-07-09

Digital.CSIC (Spain)

48

Optical transitions and excitonic recombination in InAs/InP self-assembled quantum wires

Alén, Benito; Martínez-Pastor, Juan; García-Cristobal, Alberto; González, Luisa; García, Jorge M.
2001-04-25

Digital.CSIC (Spain)

49

On the spectrum of nonrelativistic AdS/CFT

Fernández Barbón, José L.; Fuertes, Carlos A.
2008-06-20

Digital.CSIC (Spain)

50

On the security of the Quantum Key Distribution protocols

Álvarez Marañón, Gonzalo; Montoya Vitini, Fausto; Orúe, Amalia B.
2001-07-01

Digital.CSIC (Spain)

51

On the dynamics of the H(+) + D2(v=0, j=0) --> HD + D(+) reaction: A comparison between theory and experiment

Carmona-Novillo, Estela; González Lezana, Tomás; Roncero, Octavio; Honvault, Pascal; Launay, Jean-Michel; Bulut, Niyazi; Aoiz, F. Javier; Bañares, Luis; Trottier, Alexandre; Wrede, Eckart
2008-01-03

Digital.CSIC (Spain)

52

On the classical limit in atom-surface diffraction

Sanz, Ángel S.; Borondo, Florentino; Miret-Artés, Salvador

7 pages, 3 figures -- PACS numbers: 03.65.-w, 03.65.Ta, 79.20.Rf | The transition to the classical limit in atom-surface diffraction is studied using the de Broglie-Bohm causal formalism. In particular, we focus on rainbow scattering, which is a well-defined effect in classical mechanics and has a c...

DRIVER (Spanish)

53

On the classical limit in atom-surface diffraction

Sanz, Ángel S.; Borondo, Florentino; Miret-Artés, Salvador
2001-08-01

Digital.CSIC (Spain)

54

Nonadiabatic couplings in the collisional removal of O2(b g+,v) by O2

Dayou, F.; Hernández, Marta I.; Campos-Martínez, José; Hernández-Lamoneda, Ramón
2010-01-28

Digital.CSIC (Spain)

55

New cryogenic environment for beamline ID22 at the European Synchrotron Radiation Facility

Martínez-Criado, G.; Steinmann, R.; Alén, Benito; Labrador, A.; Fuster, David; Ripalda, José María; Homs, A.; Labouré, S.; Susini, J.
2007-02-26

Digital.CSIC (Spain)

56

New Insight into the Gas-Phase Bimolecular Self-Reaction of the HOO Radical

Anglada Rull, Josep M.; Olivella, Santiago; Sol, Albert
2007-10-02

Digital.CSIC (Spain)

57

NMR and x-ray conformational study of artemisiifolin and three other related germacranolides

Jimeno, M. Luisa; Apreda-Rojas, María del Carmen; Cano, Félix H.; Rodríguez, Benjamín
2004-01-01

Digital.CSIC (Spain)

58

Multichannel effects in Rashba quantum wires

Gelabert, M. M.; Serra, Llorenç; Sánchez, David; López, Rosa
2010-01-01

Digital.CSIC (Spain)

59

Morphological transformation of InyGa1−yAs islands, fabricated by Stranski–Krastanov growth

Lorke, Axel; Blossey, Ralf; García, Jorge M.; Bichler, M.; Abstreiter, G.
2002-01-16

Digital.CSIC (Spain)

60

Molecular photoreactivity on metal-oxide surfaces from first-principles: photocathalysis and photovoltaics

Lara Castells, M. Pilar de; Aguirre Castiblanco, Néstor Fabián; López Durán, David; Ortega Mateo, José; Mitrushchenkov, Alexander O.
2010-02-01

Digital.CSIC (Spain)

61

Microscopic and macroscopic dielectric description of mixed oxide thin films

Ferrer, F. J.; Yubero Valencia, Francisco; Mejías, J. A.; García-López, F. J.; González-Elipe, Agustín R.
2007-10-30

Digital.CSIC (Spain)

64

Mechanism of GaN quantum dots capped with AlN: An AFM, electron microscopy, and x-ray anomalous diffraction study

Coraux, J.; Amstatt, B.; Budagoski, J. A.; Bellet-Amalric, E.; Rouvière, Jean-Luc; Favre-Nicolin, V.; Proietti, M. G.; Renevier, H.; Daudin, B.
2006-11-02

Digital.CSIC (Spain)

68

Long-term responses of the green-algal lichen Parmelia caperata to natural CO2 enrichment

Balaguer, Luis; Manrique, Esteban; Ríos, Asunción de los; Ascaso, Carmen; Palmqvist, K.; Fordham, M.; Barnes, J.D.
1999-01-01

Digital.CSIC (Spain)

70

Length uncertainty in a gravity's rainbow formalism

Galán, Pablo; Mena Marugán, Guillermo A.

13 pags. ; appendix | It is commonly accepted that the combination of quantum mechanics and general relativity gives rise to the emergence of a minimum uncertainty both in space and time. The arguments that support this conclusion are mainly based on perturbative approaches to the quantization, in w...

DRIVER (Spanish)

71

Length uncertainty in a gravity's rainbow formalism

Galán, Pablo; Mena Marugán, Guillermo A.
2005-08-17

Digital.CSIC (Spain)

73

Landau levels and Riemann zeros

Sierra, Germán; Townsend, Paul K.
2008-09-12

Digital.CSIC (Spain)

75

Introduction to quantum mechanics

Villaseñor, Eduardo J. S.
2008-06-25

Digital.CSIC (Spain)

76

Influence of the InAs coverage on the phonon-assisted recombination in InAs/GaAs quantum dots

Rudamas, C.; Martínez-Pastor, Juan; García-Cristobal, Alberto; Roussignol, Philippe; García, Jorge M.; González, Luisa
2002-06-01

Digital.CSIC (Spain)

77

In segregation effects during quantum dot and quantum ring formation on GaAs(001)

García, Jorge M.; Granados, Daniel; Silveira, Juan Pedro; Briones Fernández-Pola, Fernando
2004-01-01

Digital.CSIC (Spain)

80

Hydrogen Bonding in Copoly(ether−urea)s and Its Relationship with the Physical Properties

Marcos-Fernández, Ángel; Lozano, Ángel E.; González Hernández, Luis; Rodríguez Díaz, Andrés
1997-01-01

Digital.CSIC (Spain)

81

Group-quantization of non-linear sigma models:particle on S2 revisited

Aldaya Valverde, Víctor; Calixto Molina, Manuel; López Ruiz, Francisco Felipe

We present the quantum mechanics of “partial-trace” non-linear sigma models, on the grounds of a fully symmetry-based procedure. After the general scheme is sketched, the particular example of a particle on the two-sphere is explicitly developed. As a remarkable feature, no explicit constraint treat...

DRIVER (Spanish)

82

Grazing incidence diffraction anomalous fine structure study of GaN/AlN quantum dots

Coraux, J.; Favre-Nicolin, V.; Proietti, M. G.; Renevier, H.; Daudin, B.
2006-05-01

Digital.CSIC (Spain)

83

Formation and geminate quenching of singlet oxygen in purple bacterial reaction center

Arellano, Juan B.; Yousef, Yaser A.; Melo, Thor Bernt; Mohamad, Samsun B. B.; Cogdell, Richard J.; Naqvi, K. Razi
2007-05-01

Digital.CSIC (Spain)

84

Exact Solution of the Isovector Neutron-Proton Pairing Hamiltonian

Dukelsky, Jorge; Gueorguiev, V. G.; Van Isacker, P.; Dimitrova, S.; Errea, Beatriz; Lerma H., Sergio
2006-02-23

Digital.CSIC (Spain)

85

Entanglement swapping between spacelike-separated atoms

León García, Juan José; Sabín, Carlos
2008-11-10

Digital.CSIC (Spain)

87

Dynamics and potential energy surfaces for small to medium size He(n)-dihalogen clusters

Delgado Barrio, Gerardo; Valdés, Álvaro; López Durán, David; Lara Castells, M. Pilar de; Prosmiti, Rita

2 pages.-- PACS nrs.: 03.65.Ta; 34.20.Gj; 36.40.-c.-- Contributed to: Eighth International Symposium on Frontiers of Fundamental Physics (FFP8), Madrid, Spain, Oct 17-19, 2006. | The intermolecular forces between atoms and molecules are of great importance in studies of solids, liquids and clusters....

DRIVER (Spanish)

88

Dynamics and potential energy surfaces for small to medium size He(n)-dihalogen clusters

Delgado Barrio, Gerardo; Valdés, Álvaro; López Durán, David; Lara Castells, M. Pilar de; Prosmiti, Rita; Villarreal, Pablo
2007-04-28

Digital.CSIC (Spain)

89

Dirac Equation and Quantum Relativistic Effects in a Single Trapped Ion

Lamata, Lucas; León García, Juan José; Schätz, T.; Solano, E.

4 pages, 1 figure.-- PACS nrs.: 31.30.Jv; 03.65.Pm; 32.80.Pj.-- ArXiv pre-print available at: http://arxiv.org/abs/quant-ph/0701208 | We present a method of simulating the Dirac equation in 3+1 dimensions for a free spin-1/2 particle in a single trapped ion. The Dirac bispinor is represented by four...

DRIVER (Spanish)

90

Dirac Equation and Quantum Relativistic Effects in a Single Trapped Ion

Lamata, Lucas; León García, Juan José; Schätz, T.; Solano, E.
2007-06-22

Digital.CSIC (Spain)

91

Differential cross sections and product rotational polarization in A + BC reactions using wave packet methods: H+ D2 and Li + HF examples

Zanchet, Alexander; Roncero, Octavio; González Lezana, Tomás; Rodríguez-López, A.; Aguado, Alfredo; Sanz, Cristina; Gómez Carrasco, Susana
2009-08-01

Digital.CSIC (Spain)

92

Desarrollo de un campo de fuerzas de mecánica molecular para la interacción de Na+ con agua

Deriabina, A.; Ledesma, J.O.; Gonzalez, E.; Herrera, J.N.; Poltev, V.
2006-02-01

Resumen en español En el marco de la mecanica molecular se proponen funciones de potencial de tipo 1-6-12, para la descripción de las interacciones del ion de sodio con agua. Para el ajuste de los parametros del potencial se utilizan resultados geométricos y energéticos, obtenidos con cálculos ab-initio con diferentes bases, para la conformacion de cúmulos en sistemas "Na++ (H2O)n" con n=1-6 moleculas de agua, y datos experimentales que permiten evaluar la entalpia diferencial de forma (mas) cion de dichos cúmulos a 0K. Se eligió un potencial 6-12 con pozo de energía ε y distancia en equilibrio r con valores de 1.8 kcal/mol y 2.569Å respectivamente, que reproducen satisfactoriamente los datos teóricos y experimentales. Resumen en inglés Molecular Mechanics potential functions of 1-6-12 type have been proposed to describe sodium ion-water interactions. The coefficients of the potential functions are adjusted to reproduce both ab-initio quantum mechanics data for Na++ (H2O)n clusters (n varying from 1 to 6) and experimental data permitting evaluate differential enthalpies of these cluster formations at 0K. The 6-12 part of Na+... O potential has the values of 2.569Å and 1.8 kcal/mol for the equilibrium distance and depth of energy well respectively.

Scientific Electronic Library Online (Spanish)

93

Dehydroxylation mechanisms in Al3+/Fe3+ dioctahedral phyllosilicates by quantum mechanical methods with cluster models

Molina-Montes, Esther; Timón, Vicente; Hernández-Laguna, Alfonso; Sainz-Díaz, C. Ignacio
2008-08-15

Digital.CSIC (Spain)

94

Decaying warm dark matter and neutrino masses

Lattanzi, Massimiliano; Valle, José W. F.
2007-09-20

Digital.CSIC (Spain)

96

Cumulative reaction probabilities and transition state properties: A study of the H++H2 and H++D2 proton exchange reactions

Jambrina, P. G.; Aoiz, F. J.; Eyles, C. J.; Herrero, Víctor J.; Sáez Rábanos, V.
2009-05-08

Digital.CSIC (Spain)

97

Crystalline Polymorphism and Molecular Structure of Sodium Pravastatin

Martín-Islán, Africa P.; Cruzado, M. C.; Asensio, R.; Sainz-Díaz, C. Ignacio
2006-11-30

Digital.CSIC (Spain)

98

Crystal structure of minoxidil at low temperature and polymorph prediction

Martín-Islán, Africa P.; Martín-Ramos, Daniel; Sainz-Díaz, C. Ignacio
2007-08-22

Digital.CSIC (Spain)

99

Conformational analysis of a cyclopropane analogue of phenylalanine with two geminal phenyl substituents

Casanovas, Jordi; Jiménez, Ana I.; Cativiela, Carlos; Pérez, Juan J.; Alemán, Carlos
2006-02-22

Digital.CSIC (Spain)

101

Competition between carrier recombination and tunneling in quantum dots and rings under the action of electric fields

Bosch, J.; Alén, Benito; Martínez-Pastor, Juan; Granados, Daniel; García, Jorge M.; González, Luisa
2008-01-01

Digital.CSIC (Spain)

103

Classical and quantum behavior of dynamical systems defined by functions of solvable Hamiltonians

Barbero González, Jesús Fernando; Garay Elizondo, Iñaki; Villaseñor, Eduardo J. S.
2007-10-07

Digital.CSIC (Spain)

104

Causal trajectories description of atom diffraction by surfaces

Sanz, Ángel S.; Borondo, Florentino; Miret-Artés, Salvador

9 pages, 7 figures -- PACS numbers: 79.20.Rf, 03.65.Sq, 03.65.Bz | The method of quantum trajectories proposed by de Broglie and Bohm is applied to the study of atom diffraction by surfaces. As an example, a realistic model for the scattering of He off corrugated Cu is considered. In this way, the f...

DRIVER (Spanish)

105

Causal trajectories description of atom diffraction by surfaces

Sanz, Ángel S.; Borondo, Florentino; Miret-Artés, Salvador
2000-03-15

Digital.CSIC (Spain)

107

Backbone conformational preferences and pseudorotational ring puckering of 1-aminocyclopentane-1-carboxylic acid

Alemán, Carlos; Zanuy, David; Casanovas, Jordi; Cativiela, Carlos; Nussinov, Ruth
2006-09-23

Digital.CSIC (Spain)

108

Anti-de Sitter universe dynamics in loop quantum cosmology

Bentivegna, Eloisa; Pawlowski, Tomasz

17 pags. ; 11 figs. ; appendix A-B | A model for a flat isotropic universe with a negative cosmological constant Lambda and a massless scalar field as sole matter content is studied within the framework of loop quantum cosmology. By application of the methods introduced for the model with Lambda=0, ...

DRIVER (Spanish)

109

Anti-de Sitter universe dynamics in loop quantum cosmology

Bentivegna, Eloisa; Pawlowski, Tomasz
2008-06-18

Digital.CSIC (Spain)

110

Anions in metallic matrices model: application to the aluminium crystal chemistry

Vegas, Ángel; Santamaría Pérez, David; Marqués, M.; Flórez, M.; García Baonza, V.; Recio, J. M.
2006-04-01

Digital.CSIC (Spain)

112

Activation of the aryl hydrocarbon receptor by carbaryl: Computational evidence of the ability of carbaryl to assume a planar conformation

Casado, Susana; Alonso Giner, Mercedes; Herradón García, Bernardo; Tarazona, José V.; Navas, José M.
2006-12-01

Digital.CSIC (Spain)

113

Abelian gerbes as a gauge theory of quantum mechanics on phase space

Isidro, José M.; Gosson, Maurice A. de

19 pages, 1 figure.-- PACS nrs.: 02.20.Bb, 02.40.Re, 03.65.Fd.-- ISI Article Identifier: 000245037900017.-- ArXiv pre-print available at: http://arxiv.org/abs/hep-th/0608087 | We construct a U(1) gerbe with a connection over a finite-dimensional, classical phase space P. The connection is given by a...

DRIVER (Spanish)

115

Ab initio vibrational predissociation dynamics of He-I2(B) complex

Valdés, Álvaro; Prosmiti, Rita; Villarreal, Pablo; Delgado Barrio, Gerardo; Lemoine, Didier; Lepetit, Bruno
2007-06-29

Digital.CSIC (Spain)

116

Ab initio molecular dynamics on the electronic Boltzmann equilibrium distribution

Alonso, José Luis; Castro, Alberto; Echenique, Pablo; Polo, Víctor; Rubio, Ángel; Zueco, David
2010-01-01

Digital.CSIC (Spain)

117

A time-dependent approach to electron pumping in open quantum systems

Stefanucci, Gianluca; Kurth, S.; Rubio Secades, Ángel; Gross, E. K. U.
2008-02-29

Digital.CSIC (Spain)

119

A theoretical study of He2ICl van der Waals cluster

Valdés, Álvaro; Prosmiti, Rita; Villarreal, Pablo; Delgado Barrio, Gerardo
2006-07-06

Digital.CSIC (Spain)

121

A path-integral Monte Carlo study of a small cluster: The Ar trimer

Pérez de Tudela, Ricardo; Márquez-Mijares, Maykel; González Lezana, Tomás; Roncero, Octavio; Miret-Artés, Salvador; Delgado Barrio, Gerardo; Villareal, Pablo
2010-06-23

Digital.CSIC (Spain)

122

A gauge theory of quantum mechanics

Isidro, José M.; Gosson, Maurice A. de

10 pages.-- ISI Article Identifier: 000251284100003.-- ArXiv pre-print available at: http://arxiv.org/abs/quant-ph/0608093 | An Abelian gerbe is constructed over classical phase space. The two-cocycles defining the gerbe are given by Feynman path integrals whose integrands contain the exponential of...

DRIVER (Spanish)

123

A gauge theory of quantum mechanics

Isidro, José M.; Gosson, Maurice A. de
2007-01-30

Digital.CSIC (Spain)

125

A detailed quantum mechanical and quasiclassical trajectory study on the dynamics of the H(+) + H2 --> H2 + H(+) exchange reaction

González Lezana, Tomás; Roncero, Octavio; Honvault, Pascal; Launay, Jean-Michel; Bulut, Niyazi; Aoiz, F. Javier; Bañares, Luis
2006-09-06

Digital.CSIC (Spain)