Universal decoherence induced by an environmental quantum phase transition

Autores
Cucchietti, Fernando Martín; Fernandez-Vidal, Sonia; Paz, Juan Pablo
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Decoherence induced by coupling a system with an environment may display universal features. We demonstrate that when the coupling to the system drives a quantum phase transition in the environment, the decay of quantum coherences in the system is Gaussian with a width independent of the system-environment coupling strength. We obtain analytical results for a class of solvable models, and present numerical evidence supporting the validity of our results in more general cases. This effect opens the way for a quantum simulation algorithm, where a single qubit is used to detect a quantum phase transition. We discuss possible implementations of such an algorithm and relate our results to available data on universal decoherence in NMR echo experiments. © 2007 The American Physical Society.
Fil: Cucchietti, Fernando Martín. Los Alamos National Laboratory; Estados Unidos
Fil: Fernandez-Vidal, Sonia. Universitat Autònoma de Barcelona; España
Fil: Paz, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Materia
Decoherence
Quantum Phase Transitions
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/67752
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/67752
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network_name_str CONICET Digital (CONICET)
spelling Universal decoherence induced by an environmental quantum phase transitionCucchietti, Fernando MartínFernandez-Vidal, SoniaPaz, Juan PabloDecoherenceQuantum Phase Transitionshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Decoherence induced by coupling a system with an environment may display universal features. We demonstrate that when the coupling to the system drives a quantum phase transition in the environment, the decay of quantum coherences in the system is Gaussian with a width independent of the system-environment coupling strength. We obtain analytical results for a class of solvable models, and present numerical evidence supporting the validity of our results in more general cases. This effect opens the way for a quantum simulation algorithm, where a single qubit is used to detect a quantum phase transition. We discuss possible implementations of such an algorithm and relate our results to available data on universal decoherence in NMR echo experiments. © 2007 The American Physical Society.Fil: Cucchietti, Fernando Martín. Los Alamos National Laboratory; Estados UnidosFil: Fernandez-Vidal, Sonia. Universitat Autònoma de Barcelona; EspañaFil: Paz, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaAmerican Physical Society2007-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/67752Cucchietti, Fernando Martín; Fernandez-Vidal, Sonia; Paz, Juan Pablo; Universal decoherence induced by an environmental quantum phase transition; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 75; 3; 12-2007; 32337-323431050-2947CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevA.75.032337info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:50:52Zoai:ri.conicet.gov.ar:11336/67752instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:50:52.39CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Universal decoherence induced by an environmental quantum phase transition
title Universal decoherence induced by an environmental quantum phase transition
spellingShingle Universal decoherence induced by an environmental quantum phase transition
Cucchietti, Fernando Martín
Decoherence
Quantum Phase Transitions
title_short Universal decoherence induced by an environmental quantum phase transition
title_full Universal decoherence induced by an environmental quantum phase transition
title_fullStr Universal decoherence induced by an environmental quantum phase transition
title_full_unstemmed Universal decoherence induced by an environmental quantum phase transition
title_sort Universal decoherence induced by an environmental quantum phase transition
dc.creator.none.fl_str_mv Cucchietti, Fernando Martín
Fernandez-Vidal, Sonia
Paz, Juan Pablo
author Cucchietti, Fernando Martín
author_facet Cucchietti, Fernando Martín
Fernandez-Vidal, Sonia
Paz, Juan Pablo
author_role author
author2 Fernandez-Vidal, Sonia
Paz, Juan Pablo
author2_role author
author
dc.subject.none.fl_str_mv Decoherence
Quantum Phase Transitions
topic Decoherence
Quantum Phase Transitions
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Decoherence induced by coupling a system with an environment may display universal features. We demonstrate that when the coupling to the system drives a quantum phase transition in the environment, the decay of quantum coherences in the system is Gaussian with a width independent of the system-environment coupling strength. We obtain analytical results for a class of solvable models, and present numerical evidence supporting the validity of our results in more general cases. This effect opens the way for a quantum simulation algorithm, where a single qubit is used to detect a quantum phase transition. We discuss possible implementations of such an algorithm and relate our results to available data on universal decoherence in NMR echo experiments. © 2007 The American Physical Society.
Fil: Cucchietti, Fernando Martín. Los Alamos National Laboratory; Estados Unidos
Fil: Fernandez-Vidal, Sonia. Universitat Autònoma de Barcelona; España
Fil: Paz, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
description Decoherence induced by coupling a system with an environment may display universal features. We demonstrate that when the coupling to the system drives a quantum phase transition in the environment, the decay of quantum coherences in the system is Gaussian with a width independent of the system-environment coupling strength. We obtain analytical results for a class of solvable models, and present numerical evidence supporting the validity of our results in more general cases. This effect opens the way for a quantum simulation algorithm, where a single qubit is used to detect a quantum phase transition. We discuss possible implementations of such an algorithm and relate our results to available data on universal decoherence in NMR echo experiments. © 2007 The American Physical Society.
publishDate 2007
dc.date.none.fl_str_mv 2007-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/67752
Cucchietti, Fernando Martín; Fernandez-Vidal, Sonia; Paz, Juan Pablo; Universal decoherence induced by an environmental quantum phase transition; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 75; 3; 12-2007; 32337-32343
1050-2947
CONICET Digital
CONICET
url http://hdl.handle.net/11336/67752
identifier_str_mv Cucchietti, Fernando Martín; Fernandez-Vidal, Sonia; Paz, Juan Pablo; Universal decoherence induced by an environmental quantum phase transition; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 75; 3; 12-2007; 32337-32343
1050-2947
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevA.75.032337
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
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:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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