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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/67752
Ver los metadatos del registro completo
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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 Técnicas2025-09-03T09:54:34Zoai: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:34982025-09-03 09:54:34.497CONICET 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 |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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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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13.13397 |