Time fluctuations in isolated quantum systems of interacting particles

Autores
Zangara, Pablo R.; Dente, Axel D.; Torres Herrera, E. J.; Pastawski, Horacio M.; Iucci, Carlos Aníbal; Santos, Lea F.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Numerically, we study the time fluctuations of few-body observables after relaxation in isolated dynamical quantum systems of interacting particles. Our results suggest that they decay exponentially with system size in both regimes, integrable and chaotic. The integrable systems considered are solvable with the Bethe ansatz and have a highly nondegenerate spectrum. This is in contrast with integrable Hamiltonians mappable to noninteracting ones. We show that the coefficient of the exponential decay depends on the level of delocalization of the initial state with respect to the energy shell.
Facultad de Ciencias Exactas
Instituto de Física La Plata
Materia
Ciencias Exactas
Física
time fluctuations
integrable systems
coefficient of the exponential decay
delocalization
energy shell
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/126075
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/126075
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Time fluctuations in isolated quantum systems of interacting particlesZangara, Pablo R.Dente, Axel D.Torres Herrera, E. J.Pastawski, Horacio M.Iucci, Carlos AníbalSantos, Lea F.Ciencias ExactasFísicatime fluctuationsintegrable systemscoefficient of the exponential decaydelocalizationenergy shellNumerically, we study the time fluctuations of few-body observables after relaxation in isolated dynamical quantum systems of interacting particles. Our results suggest that they decay exponentially with system size in both regimes, integrable and chaotic. The integrable systems considered are solvable with the Bethe ansatz and have a highly nondegenerate spectrum. This is in contrast with integrable Hamiltonians mappable to noninteracting ones. We show that the coefficient of the exponential decay depends on the level of delocalization of the initial state with respect to the energy shell.Facultad de Ciencias ExactasInstituto de Física La Plata2013-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/126075enginfo:eu-repo/semantics/altIdentifier/issn/1550-2376info:eu-repo/semantics/altIdentifier/issn/1539-3755info:eu-repo/semantics/altIdentifier/arxiv/1305.4640v2info:eu-repo/semantics/altIdentifier/pmid/24125331info:eu-repo/semantics/altIdentifier/doi/10.1103/physreve.88.032913info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:22:11Zoai:sedici.unlp.edu.ar:10915/126075Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:22:11.345SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Time fluctuations in isolated quantum systems of interacting particles
title Time fluctuations in isolated quantum systems of interacting particles
spellingShingle Time fluctuations in isolated quantum systems of interacting particles
Zangara, Pablo R.
Ciencias Exactas
Física
time fluctuations
integrable systems
coefficient of the exponential decay
delocalization
energy shell
title_short Time fluctuations in isolated quantum systems of interacting particles
title_full Time fluctuations in isolated quantum systems of interacting particles
title_fullStr Time fluctuations in isolated quantum systems of interacting particles
title_full_unstemmed Time fluctuations in isolated quantum systems of interacting particles
title_sort Time fluctuations in isolated quantum systems of interacting particles
dc.creator.none.fl_str_mv Zangara, Pablo R.
Dente, Axel D.
Torres Herrera, E. J.
Pastawski, Horacio M.
Iucci, Carlos Aníbal
Santos, Lea F.
author Zangara, Pablo R.
author_facet Zangara, Pablo R.
Dente, Axel D.
Torres Herrera, E. J.
Pastawski, Horacio M.
Iucci, Carlos Aníbal
Santos, Lea F.
author_role author
author2 Dente, Axel D.
Torres Herrera, E. J.
Pastawski, Horacio M.
Iucci, Carlos Aníbal
Santos, Lea F.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
time fluctuations
integrable systems
coefficient of the exponential decay
delocalization
energy shell
topic Ciencias Exactas
Física
time fluctuations
integrable systems
coefficient of the exponential decay
delocalization
energy shell
dc.description.none.fl_txt_mv Numerically, we study the time fluctuations of few-body observables after relaxation in isolated dynamical quantum systems of interacting particles. Our results suggest that they decay exponentially with system size in both regimes, integrable and chaotic. The integrable systems considered are solvable with the Bethe ansatz and have a highly nondegenerate spectrum. This is in contrast with integrable Hamiltonians mappable to noninteracting ones. We show that the coefficient of the exponential decay depends on the level of delocalization of the initial state with respect to the energy shell.
Facultad de Ciencias Exactas
Instituto de Física La Plata
description Numerically, we study the time fluctuations of few-body observables after relaxation in isolated dynamical quantum systems of interacting particles. Our results suggest that they decay exponentially with system size in both regimes, integrable and chaotic. The integrable systems considered are solvable with the Bethe ansatz and have a highly nondegenerate spectrum. This is in contrast with integrable Hamiltonians mappable to noninteracting ones. We show that the coefficient of the exponential decay depends on the level of delocalization of the initial state with respect to the energy shell.
publishDate 2013
dc.date.none.fl_str_mv 2013-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/126075
url http://sedici.unlp.edu.ar/handle/10915/126075
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1550-2376
info:eu-repo/semantics/altIdentifier/issn/1539-3755
info:eu-repo/semantics/altIdentifier/arxiv/1305.4640v2
info:eu-repo/semantics/altIdentifier/pmid/24125331
info:eu-repo/semantics/altIdentifier/doi/10.1103/physreve.88.032913
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.22299

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