Causal trajectories description of atom diffraction by surfaces

9 pages, 7 figures -- PACS numbers: 79.20.Rf, 03.65.Sq, 03.65.Bz

Detalhes bibliográficos
Autores: Sanz, Ángel S., Borondo, Florentino, Miret-Artés, Salvador
Tipo de documento: artigo
Data de publicação:2000
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/12239
Acesso em linha:http://hdl.handle.net/10261/12239
Access Level:Acceso aberto
Palavra-chave:Atom diffraction
Atom-surface scattering
Quantum trajectories
Bohmian Mechanics
Surface Physics
Foundations of Quantum Mechanics
deBroglie-Bohm Theory
Quantum Hydrodynamics
id ES_e034dfd8391f573c66767ce57d4f1bdc
oai_identifier_str oai:digital.csic.es:10261/12239
network_acronym_str ES
network_name_str España
repository_id_str
spelling Causal trajectories description of atom diffraction by surfacesSanz, Ángel S.Borondo, FlorentinoMiret-Artés, SalvadorAtom diffractionAtom-surface scatteringQuantum trajectoriesBohmian MechanicsSurface PhysicsFoundations of Quantum MechanicsdeBroglie-Bohm TheoryQuantum Hydrodynamics9 pages, 7 figures -- PACS numbers: 79.20.Rf, 03.65.Sq, 03.65.BzThe 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 final angular distribution of trajectories is obtained by box-counting, which is in excellent agreement with the results calculated by standard S-matrix methods of scattering theory. More interestingly, the accumulation of quantum trajectories at the different diffraction peaks is explained in terms of the corresponding quantum potential. This non-local potential "guides" the trajectories causing a transition from a distribution near the surface, which reproduces its shape, to the final diffraction pattern observed in the asymptotic region, far from the diffracting object. These two regimes are homologous to the Fresnel and Fraunhofer regions described in undulatory optics. Finally, the turning points of the quantum trajectories provide a better description of the surface electronic density than the corresponding classical ones, usually employed for this task.This work was supported by DGES (Spain) under contracts No PB95-71, PB95-425 and PB96-76. A.S. Sanz also acknowledges the Universidad Autónoma de Madrid for a doctoral grant.Peer reviewedAmerican Physical Society200920092000info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501517926 bytesapplication/pdfhttp://hdl.handle.net/10261/12239reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://link.aps.org/doi/10.1103/PhysRevB.61.7743info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/122392026-05-22T06:33:51Z
dc.title.none.fl_str_mv Causal trajectories description of atom diffraction by surfaces
title Causal trajectories description of atom diffraction by surfaces
spellingShingle Causal trajectories description of atom diffraction by surfaces
Sanz, Ángel S.
Atom diffraction
Atom-surface scattering
Quantum trajectories
Bohmian Mechanics
Surface Physics
Foundations of Quantum Mechanics
deBroglie-Bohm Theory
Quantum Hydrodynamics
title_short Causal trajectories description of atom diffraction by surfaces
title_full Causal trajectories description of atom diffraction by surfaces
title_fullStr Causal trajectories description of atom diffraction by surfaces
title_full_unstemmed Causal trajectories description of atom diffraction by surfaces
title_sort Causal trajectories description of atom diffraction by surfaces
dc.creator.none.fl_str_mv Sanz, Ángel S.
Borondo, Florentino
Miret-Artés, Salvador
author Sanz, Ángel S.
author_facet Sanz, Ángel S.
Borondo, Florentino
Miret-Artés, Salvador
author_role author
author2 Borondo, Florentino
Miret-Artés, Salvador
author2_role author
author
dc.subject.none.fl_str_mv Atom diffraction
Atom-surface scattering
Quantum trajectories
Bohmian Mechanics
Surface Physics
Foundations of Quantum Mechanics
deBroglie-Bohm Theory
Quantum Hydrodynamics
topic Atom diffraction
Atom-surface scattering
Quantum trajectories
Bohmian Mechanics
Surface Physics
Foundations of Quantum Mechanics
deBroglie-Bohm Theory
Quantum Hydrodynamics
description 9 pages, 7 figures -- PACS numbers: 79.20.Rf, 03.65.Sq, 03.65.Bz
publishDate 2000
dc.date.none.fl_str_mv 2000
2009
2009
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/12239
url http://hdl.handle.net/10261/12239
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://link.aps.org/doi/10.1103/PhysRevB.61.7743
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 517926 bytes
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869422180972888064
score 15,812429

Registros relacionados