Smoothed Wigner-distributions, decoherence, and the temperature-dependence of the classical-quantum frontier

Autores
Pennini, Flavia; Plastino, Ángel Luis
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We discuss the strange behavior at T = 0 of the phase-space Wigner distribution of the harmonic oscillator with the help of the purely quantal concepts of participation ratio of a mixed state and decoherence parameter. We also show that Wigner distribution-smoothing yields interesting insights, specially in the pathological instance in which the Wigner-Fano factor diverges. The associated decoherence parameter also sheds some light on temperature-dependence of the classical-quantum frontier.
Instituto de Física La Plata
Materia
Física
Ciencias Exactas
Wigner distribution
classical-quantum frontier
temperature
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/137942
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/137942
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Smoothed Wigner-distributions, decoherence, and the temperature-dependence of the classical-quantum frontierPennini, FlaviaPlastino, Ángel LuisFísicaCiencias ExactasWigner distributionclassical-quantum frontiertemperatureWe discuss the strange behavior at T = 0 of the phase-space Wigner distribution of the harmonic oscillator with the help of the purely quantal concepts of participation ratio of a mixed state and decoherence parameter. We also show that Wigner distribution-smoothing yields interesting insights, specially in the pathological instance in which the Wigner-Fano factor diverges. The associated decoherence parameter also sheds some light on temperature-dependence of the classical-quantum frontier.Instituto de Física La Plata2010info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf241-247http://sedici.unlp.edu.ar/handle/10915/137942enginfo:eu-repo/semantics/altIdentifier/issn/1434-6060info:eu-repo/semantics/altIdentifier/issn/1434-6079info:eu-repo/semantics/altIdentifier/doi/10.1140/epjd/e2010-00233-2info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:23:42Zoai:sedici.unlp.edu.ar:10915/137942Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:23:43.103SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Smoothed Wigner-distributions, decoherence, and the temperature-dependence of the classical-quantum frontier
title Smoothed Wigner-distributions, decoherence, and the temperature-dependence of the classical-quantum frontier
spellingShingle Smoothed Wigner-distributions, decoherence, and the temperature-dependence of the classical-quantum frontier
Pennini, Flavia
Física
Ciencias Exactas
Wigner distribution
classical-quantum frontier
temperature
title_short Smoothed Wigner-distributions, decoherence, and the temperature-dependence of the classical-quantum frontier
title_full Smoothed Wigner-distributions, decoherence, and the temperature-dependence of the classical-quantum frontier
title_fullStr Smoothed Wigner-distributions, decoherence, and the temperature-dependence of the classical-quantum frontier
title_full_unstemmed Smoothed Wigner-distributions, decoherence, and the temperature-dependence of the classical-quantum frontier
title_sort Smoothed Wigner-distributions, decoherence, and the temperature-dependence of the classical-quantum frontier
dc.creator.none.fl_str_mv Pennini, Flavia
Plastino, Ángel Luis
author Pennini, Flavia
author_facet Pennini, Flavia
Plastino, Ángel Luis
author_role author
author2 Plastino, Ángel Luis
author2_role author
dc.subject.none.fl_str_mv Física
Ciencias Exactas
Wigner distribution
classical-quantum frontier
temperature
topic Física
Ciencias Exactas
Wigner distribution
classical-quantum frontier
temperature
dc.description.none.fl_txt_mv We discuss the strange behavior at T = 0 of the phase-space Wigner distribution of the harmonic oscillator with the help of the purely quantal concepts of participation ratio of a mixed state and decoherence parameter. We also show that Wigner distribution-smoothing yields interesting insights, specially in the pathological instance in which the Wigner-Fano factor diverges. The associated decoherence parameter also sheds some light on temperature-dependence of the classical-quantum frontier.
Instituto de Física La Plata
description We discuss the strange behavior at T = 0 of the phase-space Wigner distribution of the harmonic oscillator with the help of the purely quantal concepts of participation ratio of a mixed state and decoherence parameter. We also show that Wigner distribution-smoothing yields interesting insights, specially in the pathological instance in which the Wigner-Fano factor diverges. The associated decoherence parameter also sheds some light on temperature-dependence of the classical-quantum frontier.
publishDate 2010
dc.date.none.fl_str_mv 2010
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/10915/137942
url http://sedici.unlp.edu.ar/handle/10915/137942
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1434-6060
info:eu-repo/semantics/altIdentifier/issn/1434-6079
info:eu-repo/semantics/altIdentifier/doi/10.1140/epjd/e2010-00233-2
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
241-247
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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