Decoherence in current induced forces: Application to adiabatic quantum motors

Current induced forces are not only related with the discrete nature of electrons but also with its quantum character. It is natural then to wonder about the effect of decoherence. Here, we develop the theory of current induced forces including dephasing processes and we apply it to study adiabatic...

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Autores: Fernández, Lucas Jonatan, Bustos Marun, Raul Alberto, Pastawski, Horacio Miguel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/51150
Acceso en línea:http://hdl.handle.net/11336/51150
Access Level:acceso abierto
Palabra clave:Current induced forces
Adiabatic quantum motor
Decoherence
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
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spelling Decoherence in current induced forces: Application to adiabatic quantum motorsFernández, Lucas JonatanBustos Marun, Raul AlbertoPastawski, Horacio MiguelCurrent induced forcesAdiabatic quantum motorDecoherencehttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Current induced forces are not only related with the discrete nature of electrons but also with its quantum character. It is natural then to wonder about the effect of decoherence. Here, we develop the theory of current induced forces including dephasing processes and we apply it to study adiabatic quantum motors (AQMs). The theory is based on Büttiker's fictitious probe model, which here is reformulated for this particular case. We prove that it accomplishes the fluctuation-dissipation theorem. We also show that, in spite of decoherence, the total work performed by the current induced forces remains equal to the pumped charge per cycle times the voltage. We find that decoherence affects not only the current induced forces of the system but also its intrinsic friction and noise, modifying in a nontrivial way the efficiency of AQMs. We apply the theory to study an AQM inspired by a classical peristaltic pump where we surprisingly find that decoherence can play a crucial role by triggering its operation. Our results can help to understand how environmentally induced dephasing affects the quantum behavior of nanomechanical devices.Fil: Fernández, Lucas Jonatan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; ArgentinaFil: Bustos Marun, Raul Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas; ArgentinaFil: Pastawski, Horacio Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; ArgentinaAmerican Physical Society2015-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/51150Fernández, Lucas Jonatan; Bustos Marun, Raul Alberto; Pastawski, Horacio Miguel; Decoherence in current induced forces: Application to adiabatic quantum motors; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 92; 7; 8-2015; 75406-754061098-0121CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.92.075406info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.92.075406info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:43:32Zoai:ri.conicet.gov.ar:11336/51150instacron: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:34982024-05-08 13:43:32.473CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Decoherence in current induced forces: Application to adiabatic quantum motors
title Decoherence in current induced forces: Application to adiabatic quantum motors
spellingShingle Decoherence in current induced forces: Application to adiabatic quantum motors
Fernández, Lucas Jonatan
Current induced forces
Adiabatic quantum motor
Decoherence
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
title_short Decoherence in current induced forces: Application to adiabatic quantum motors
title_full Decoherence in current induced forces: Application to adiabatic quantum motors
title_fullStr Decoherence in current induced forces: Application to adiabatic quantum motors
title_full_unstemmed Decoherence in current induced forces: Application to adiabatic quantum motors
title_sort Decoherence in current induced forces: Application to adiabatic quantum motors
dc.creator.none.fl_str_mv Fernández, Lucas Jonatan
Bustos Marun, Raul Alberto
Pastawski, Horacio Miguel
author Fernández, Lucas Jonatan
author_facet Fernández, Lucas Jonatan
Bustos Marun, Raul Alberto
Pastawski, Horacio Miguel
author_role author
author2 Bustos Marun, Raul Alberto
Pastawski, Horacio Miguel
author2_role author
author
dc.subject.none.fl_str_mv Current induced forces
Adiabatic quantum motor
Decoherence
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
topic Current induced forces
Adiabatic quantum motor
Decoherence
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
description Current induced forces are not only related with the discrete nature of electrons but also with its quantum character. It is natural then to wonder about the effect of decoherence. Here, we develop the theory of current induced forces including dephasing processes and we apply it to study adiabatic quantum motors (AQMs). The theory is based on Büttiker's fictitious probe model, which here is reformulated for this particular case. We prove that it accomplishes the fluctuation-dissipation theorem. We also show that, in spite of decoherence, the total work performed by the current induced forces remains equal to the pumped charge per cycle times the voltage. We find that decoherence affects not only the current induced forces of the system but also its intrinsic friction and noise, modifying in a nontrivial way the efficiency of AQMs. We apply the theory to study an AQM inspired by a classical peristaltic pump where we surprisingly find that decoherence can play a crucial role by triggering its operation. Our results can help to understand how environmentally induced dephasing affects the quantum behavior of nanomechanical devices.
publishDate 2015
dc.date.none.fl_str_mv 2015-08
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/11336/51150
Fernández, Lucas Jonatan; Bustos Marun, Raul Alberto; Pastawski, Horacio Miguel; Decoherence in current induced forces: Application to adiabatic quantum motors; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 92; 7; 8-2015; 75406-75406
1098-0121
CONICET Digital
CONICET
url http://hdl.handle.net/11336/51150
identifier_str_mv Fernández, Lucas Jonatan; Bustos Marun, Raul Alberto; Pastawski, Horacio Miguel; Decoherence in current induced forces: Application to adiabatic quantum motors; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 92; 7; 8-2015; 75406-75406
1098-0121
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/PhysRevB.92.075406
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.92.075406
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
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
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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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