Quantum work and the thermodynamic cost of quantum measurements

Autores
Deffner, Sebastian; Paz, Juan Pablo; Zurek, Wojciech H.
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Quantum work is usually determined from two projective measurements of the energy at the beginning and at the end of a thermodynamic process. However, this paradigm cannot be considered thermodynamically consistent as it does not account for the thermodynamic cost of these measurements. To remedy this conceptual inconsistency we introduce a paradigm that relies only on the expected change of the average energy given the initial energy eigenbasis. In particular, we completely omit quantum measurements in the definition of quantum work, and hence quantum work is identified as a thermodynamic quantity of only the system. As main results we derive a modified quantum Jarzynski equality and a sharpened maximum work theorem in terms of the information free energy. A comparison of our results with the standard approach allows one to quantify the informational cost of projective measurements.
Fil: Deffner, Sebastian. Los Alamos National Laboratory; Estados Unidos
Fil: Paz, Juan Pablo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. 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
Fil: Zurek, Wojciech H.. Los Alamos National Laboratory; Estados Unidos
Materia
Quantum Thermodynamics
Work Distribution
Quantum Information
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:11336/47845
Acceder
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spelling Quantum work and the thermodynamic cost of quantum measurementsDeffner, SebastianPaz, Juan PabloZurek, Wojciech H.Quantum ThermodynamicsWork DistributionQuantum Informationhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Quantum work is usually determined from two projective measurements of the energy at the beginning and at the end of a thermodynamic process. However, this paradigm cannot be considered thermodynamically consistent as it does not account for the thermodynamic cost of these measurements. To remedy this conceptual inconsistency we introduce a paradigm that relies only on the expected change of the average energy given the initial energy eigenbasis. In particular, we completely omit quantum measurements in the definition of quantum work, and hence quantum work is identified as a thermodynamic quantity of only the system. As main results we derive a modified quantum Jarzynski equality and a sharpened maximum work theorem in terms of the information free energy. A comparison of our results with the standard approach allows one to quantify the informational cost of projective measurements.Fil: Deffner, Sebastian. Los Alamos National Laboratory; Estados UnidosFil: Paz, Juan Pablo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. 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; ArgentinaFil: Zurek, Wojciech H.. Los Alamos National Laboratory; Estados UnidosAmerican Physical Society2016-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/47845Deffner, Sebastian; Paz, Juan Pablo; Zurek, Wojciech H.; Quantum work and the thermodynamic cost of quantum measurements; American Physical Society; Physical Review E: Statistical, Nonlinear and Soft Matter Physics; 94; 7-20161539-3755CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://link.aps.org/doi/10.1103/PhysRevE.94.010103info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevE.94.010103info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:47:58Zoai:ri.conicet.gov.ar:11336/47845instacron: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 09:47:58.991CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Quantum work and the thermodynamic cost of quantum measurements
title Quantum work and the thermodynamic cost of quantum measurements
spellingShingle Quantum work and the thermodynamic cost of quantum measurements
Deffner, Sebastian
Quantum Thermodynamics
Work Distribution
Quantum Information
title_short Quantum work and the thermodynamic cost of quantum measurements
title_full Quantum work and the thermodynamic cost of quantum measurements
title_fullStr Quantum work and the thermodynamic cost of quantum measurements
title_full_unstemmed Quantum work and the thermodynamic cost of quantum measurements
title_sort Quantum work and the thermodynamic cost of quantum measurements
dc.creator.none.fl_str_mv Deffner, Sebastian
Paz, Juan Pablo
Zurek, Wojciech H.
author Deffner, Sebastian
author_facet Deffner, Sebastian
Paz, Juan Pablo
Zurek, Wojciech H.
author_role author
author2 Paz, Juan Pablo
Zurek, Wojciech H.
author2_role author
author
dc.subject.none.fl_str_mv Quantum Thermodynamics
Work Distribution
Quantum Information
topic Quantum Thermodynamics
Work Distribution
Quantum Information
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Quantum work is usually determined from two projective measurements of the energy at the beginning and at the end of a thermodynamic process. However, this paradigm cannot be considered thermodynamically consistent as it does not account for the thermodynamic cost of these measurements. To remedy this conceptual inconsistency we introduce a paradigm that relies only on the expected change of the average energy given the initial energy eigenbasis. In particular, we completely omit quantum measurements in the definition of quantum work, and hence quantum work is identified as a thermodynamic quantity of only the system. As main results we derive a modified quantum Jarzynski equality and a sharpened maximum work theorem in terms of the information free energy. A comparison of our results with the standard approach allows one to quantify the informational cost of projective measurements.
Fil: Deffner, Sebastian. Los Alamos National Laboratory; Estados Unidos
Fil: Paz, Juan Pablo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. 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
Fil: Zurek, Wojciech H.. Los Alamos National Laboratory; Estados Unidos
description Quantum work is usually determined from two projective measurements of the energy at the beginning and at the end of a thermodynamic process. However, this paradigm cannot be considered thermodynamically consistent as it does not account for the thermodynamic cost of these measurements. To remedy this conceptual inconsistency we introduce a paradigm that relies only on the expected change of the average energy given the initial energy eigenbasis. In particular, we completely omit quantum measurements in the definition of quantum work, and hence quantum work is identified as a thermodynamic quantity of only the system. As main results we derive a modified quantum Jarzynski equality and a sharpened maximum work theorem in terms of the information free energy. A comparison of our results with the standard approach allows one to quantify the informational cost of projective measurements.
publishDate 2016
dc.date.none.fl_str_mv 2016-07
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/11336/47845
Deffner, Sebastian; Paz, Juan Pablo; Zurek, Wojciech H.; Quantum work and the thermodynamic cost of quantum measurements; American Physical Society; Physical Review E: Statistical, Nonlinear and Soft Matter Physics; 94; 7-2016
1539-3755
CONICET Digital
CONICET
url http://hdl.handle.net/11336/47845
identifier_str_mv Deffner, Sebastian; Paz, Juan Pablo; Zurek, Wojciech H.; Quantum work and the thermodynamic cost of quantum measurements; American Physical Society; Physical Review E: Statistical, Nonlinear and Soft Matter Physics; 94; 7-2016
1539-3755
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://link.aps.org/doi/10.1103/PhysRevE.94.010103
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevE.94.010103
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 13.13397

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