Emergence of the pointer basis through the dynamics of correlations
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevLett.109.190402 http://hdl.handle.net/11449/227038 |
Resumo: | We use the classical correlation between a quantum system being measured and its measurement apparatus to analyze the amount of information being retrieved in a quantum measurement process. Accounting for decoherence of the apparatus, we show that these correlations may have a sudden transition from a decay regime to a constant level. This transition characterizes a nonasymptotic emergence of the pointer basis, while the system apparatus can still be quantum correlated. We provide a formalization of the concept of emergence of a pointer basis in an apparatus subject to decoherence. This contrast of the pointer basis emergence to the quantum to classical transition is demonstrated in an experiment with polarization entangled photon pairs. © 2012 American Physical Society. |
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Emergence of the pointer basis through the dynamics of correlationsWe use the classical correlation between a quantum system being measured and its measurement apparatus to analyze the amount of information being retrieved in a quantum measurement process. Accounting for decoherence of the apparatus, we show that these correlations may have a sudden transition from a decay regime to a constant level. This transition characterizes a nonasymptotic emergence of the pointer basis, while the system apparatus can still be quantum correlated. We provide a formalization of the concept of emergence of a pointer basis in an apparatus subject to decoherence. This contrast of the pointer basis emergence to the quantum to classical transition is demonstrated in an experiment with polarization entangled photon pairs. © 2012 American Physical Society.Instituto de Física Universidade Federal de Mato Grosso, 78060-900, Cuiabá, Mato GrossoInstituto de Física Gleb Wataghin Universidade Estadual de Campinas, 13083-859, Campinas, São PauloInstituto de Física Universidade Federal de Rio de Janeiro, Caixa Postal 68528, Rio de Janeiro, RJ 21941-972Instituto de Ciencias Nucleares Universidad Nacional Autónoma de México, Apartado Postal 70-543, México 04510 D.F.Departamento de Física Faculdade de Ciências Universidade Estadual Paulista, Bauru, São Paulo, CEP 17033-360Département de Physique Ecole Normale Supérieure, 24, rue Lhomond, F 75231 PARIS cedex 05Institute for Quantum Information Science University of Calgary, AB T2N 1N4Departamento de Física Faculdade de Ciências Universidade Estadual Paulista, Bauru, São Paulo, CEP 17033-360Universidade Federal de Mato GrossoUniversidade Estadual de Campinas (UNICAMP)Universidade Federal de Rio de JaneiroUniversidad Nacional Autónoma de MéxicoUniversidade Estadual Paulista (UNESP)Ecole Normale SupérieureUniversity of CalgaryCornelio, M. F.Farías, O. JiménezFanchini, F. F. [UNESP]Frerot, I.Aguilar, G. H.Hor-Meyll, M. O.De Oliveira, M. C.Walborn, S. P.Caldeira, A. O.Ribeiro, P. H. Souto2022-04-29T06:01:24Z2022-04-29T06:01:24Z2012-11-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1103/PhysRevLett.109.190402Physical Review Letters, v. 109, n. 19, 2012.0031-90071079-7114http://hdl.handle.net/11449/22703810.1103/PhysRevLett.109.1904022-s2.0-84869068816Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review Lettersinfo:eu-repo/semantics/openAccess2024-04-25T17:39:51Zoai:repositorio.unesp.br:11449/227038Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:58:46.136423Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Emergence of the pointer basis through the dynamics of correlations |
title |
Emergence of the pointer basis through the dynamics of correlations |
spellingShingle |
Emergence of the pointer basis through the dynamics of correlations Cornelio, M. F. |
title_short |
Emergence of the pointer basis through the dynamics of correlations |
title_full |
Emergence of the pointer basis through the dynamics of correlations |
title_fullStr |
Emergence of the pointer basis through the dynamics of correlations |
title_full_unstemmed |
Emergence of the pointer basis through the dynamics of correlations |
title_sort |
Emergence of the pointer basis through the dynamics of correlations |
author |
Cornelio, M. F. |
author_facet |
Cornelio, M. F. Farías, O. Jiménez Fanchini, F. F. [UNESP] Frerot, I. Aguilar, G. H. Hor-Meyll, M. O. De Oliveira, M. C. Walborn, S. P. Caldeira, A. O. Ribeiro, P. H. Souto |
author_role |
author |
author2 |
Farías, O. Jiménez Fanchini, F. F. [UNESP] Frerot, I. Aguilar, G. H. Hor-Meyll, M. O. De Oliveira, M. C. Walborn, S. P. Caldeira, A. O. Ribeiro, P. H. Souto |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de Mato Grosso Universidade Estadual de Campinas (UNICAMP) Universidade Federal de Rio de Janeiro Universidad Nacional Autónoma de México Universidade Estadual Paulista (UNESP) Ecole Normale Supérieure University of Calgary |
dc.contributor.author.fl_str_mv |
Cornelio, M. F. Farías, O. Jiménez Fanchini, F. F. [UNESP] Frerot, I. Aguilar, G. H. Hor-Meyll, M. O. De Oliveira, M. C. Walborn, S. P. Caldeira, A. O. Ribeiro, P. H. Souto |
description |
We use the classical correlation between a quantum system being measured and its measurement apparatus to analyze the amount of information being retrieved in a quantum measurement process. Accounting for decoherence of the apparatus, we show that these correlations may have a sudden transition from a decay regime to a constant level. This transition characterizes a nonasymptotic emergence of the pointer basis, while the system apparatus can still be quantum correlated. We provide a formalization of the concept of emergence of a pointer basis in an apparatus subject to decoherence. This contrast of the pointer basis emergence to the quantum to classical transition is demonstrated in an experiment with polarization entangled photon pairs. © 2012 American Physical Society. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-11-07 2022-04-29T06:01:24Z 2022-04-29T06:01:24Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1103/PhysRevLett.109.190402 Physical Review Letters, v. 109, n. 19, 2012. 0031-9007 1079-7114 http://hdl.handle.net/11449/227038 10.1103/PhysRevLett.109.190402 2-s2.0-84869068816 |
url |
http://dx.doi.org/10.1103/PhysRevLett.109.190402 http://hdl.handle.net/11449/227038 |
identifier_str_mv |
Physical Review Letters, v. 109, n. 19, 2012. 0031-9007 1079-7114 10.1103/PhysRevLett.109.190402 2-s2.0-84869068816 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Physical Review Letters |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1808128881435082752 |