Nonequilibrium Green's functions in the study of heat transport of driven nanomechanical systems

Autores
Arrachea, L.; Rizzo, B.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
We review a recent theoretical development based on non-equilibrium Green's function formalism to study heat transport in nanomechanical devices modeled by phononic systems of coupled quantum oscillators driven by ac forces and connected to phononic reservoirs. We present the relevant equations to calculate the heat currents flowing along different regions of the setup, as well as the power developed by the time-dependent forces. We also present different strategies to evaluate the Green's functions exactly or approximately within the weak driving regime. We finally discuss the different mechanisms in which the ac driving forces deliver the energy. We show that, besides generating heat, the forces may operate exchanging energy as a quantum engine.
Fuente
J. Phys. Conf. Ser. 2013;427
Materia
Heat transfer
Different mechanisms
Nanomechanical device
Nanomechanical systems
Non-equilibrium Green's function
Non-equilibrium Green's function formalism
Quantum oscillators
Theoretical development
Time dependent
Quantum chemistry
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/2.5/ar
Repositorio
Biblioteca Digital (UBA-FCEN)
Institución
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
OAI Identificador
paperaa:paper_17426588_v427_n_p_Arrachea
Acceder
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network_name_str Biblioteca Digital (UBA-FCEN)
spelling Nonequilibrium Green's functions in the study of heat transport of driven nanomechanical systemsArrachea, L.Rizzo, B.Heat transferDifferent mechanismsNanomechanical deviceNanomechanical systemsNon-equilibrium Green's functionNon-equilibrium Green's function formalismQuantum oscillatorsTheoretical developmentTime dependentQuantum chemistryWe review a recent theoretical development based on non-equilibrium Green's function formalism to study heat transport in nanomechanical devices modeled by phononic systems of coupled quantum oscillators driven by ac forces and connected to phononic reservoirs. We present the relevant equations to calculate the heat currents flowing along different regions of the setup, as well as the power developed by the time-dependent forces. We also present different strategies to evaluate the Green's functions exactly or approximately within the weak driving regime. We finally discuss the different mechanisms in which the ac driving forces deliver the energy. We show that, besides generating heat, the forces may operate exchanging energy as a quantum engine.2013info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfhttp://hdl.handle.net/20.500.12110/paper_17426588_v427_n_p_ArracheaJ. Phys. Conf. Ser. 2013;427reponame:Biblioteca Digital (UBA-FCEN)instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesinstacron:UBA-FCENenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/2.5/ar2025-09-29T13:42:57Zpaperaa:paper_17426588_v427_n_p_ArracheaInstitucionalhttps://digital.bl.fcen.uba.ar/Universidad públicaNo correspondehttps://digital.bl.fcen.uba.ar/cgi-bin/oaiserver.cgiana@bl.fcen.uba.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:18962025-09-29 13:42:58.783Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesfalse
dc.title.none.fl_str_mv Nonequilibrium Green's functions in the study of heat transport of driven nanomechanical systems
title Nonequilibrium Green's functions in the study of heat transport of driven nanomechanical systems
spellingShingle Nonequilibrium Green's functions in the study of heat transport of driven nanomechanical systems
Arrachea, L.
Heat transfer
Different mechanisms
Nanomechanical device
Nanomechanical systems
Non-equilibrium Green's function
Non-equilibrium Green's function formalism
Quantum oscillators
Theoretical development
Time dependent
Quantum chemistry
title_short Nonequilibrium Green's functions in the study of heat transport of driven nanomechanical systems
title_full Nonequilibrium Green's functions in the study of heat transport of driven nanomechanical systems
title_fullStr Nonequilibrium Green's functions in the study of heat transport of driven nanomechanical systems
title_full_unstemmed Nonequilibrium Green's functions in the study of heat transport of driven nanomechanical systems
title_sort Nonequilibrium Green's functions in the study of heat transport of driven nanomechanical systems
dc.creator.none.fl_str_mv Arrachea, L.
Rizzo, B.
author Arrachea, L.
author_facet Arrachea, L.
Rizzo, B.
author_role author
author2 Rizzo, B.
author2_role author
dc.subject.none.fl_str_mv Heat transfer
Different mechanisms
Nanomechanical device
Nanomechanical systems
Non-equilibrium Green's function
Non-equilibrium Green's function formalism
Quantum oscillators
Theoretical development
Time dependent
Quantum chemistry
topic Heat transfer
Different mechanisms
Nanomechanical device
Nanomechanical systems
Non-equilibrium Green's function
Non-equilibrium Green's function formalism
Quantum oscillators
Theoretical development
Time dependent
Quantum chemistry
dc.description.none.fl_txt_mv We review a recent theoretical development based on non-equilibrium Green's function formalism to study heat transport in nanomechanical devices modeled by phononic systems of coupled quantum oscillators driven by ac forces and connected to phononic reservoirs. We present the relevant equations to calculate the heat currents flowing along different regions of the setup, as well as the power developed by the time-dependent forces. We also present different strategies to evaluate the Green's functions exactly or approximately within the weak driving regime. We finally discuss the different mechanisms in which the ac driving forces deliver the energy. We show that, besides generating heat, the forces may operate exchanging energy as a quantum engine.
description We review a recent theoretical development based on non-equilibrium Green's function formalism to study heat transport in nanomechanical devices modeled by phononic systems of coupled quantum oscillators driven by ac forces and connected to phononic reservoirs. We present the relevant equations to calculate the heat currents flowing along different regions of the setup, as well as the power developed by the time-dependent forces. We also present different strategies to evaluate the Green's functions exactly or approximately within the weak driving regime. We finally discuss the different mechanisms in which the ac driving forces deliver the energy. We show that, besides generating heat, the forces may operate exchanging energy as a quantum engine.
publishDate 2013
dc.date.none.fl_str_mv 2013
dc.type.none.fl_str_mv info:eu-repo/semantics/conferenceObject
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
format conferenceObject
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12110/paper_17426588_v427_n_p_Arrachea
url http://hdl.handle.net/20.500.12110/paper_17426588_v427_n_p_Arrachea
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/2.5/ar
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/2.5/ar
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv J. Phys. Conf. Ser. 2013;427
reponame:Biblioteca Digital (UBA-FCEN)
instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
reponame_str Biblioteca Digital (UBA-FCEN)
collection Biblioteca Digital (UBA-FCEN)
instname_str Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron_str UBA-FCEN
institution UBA-FCEN
repository.name.fl_str_mv Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
repository.mail.fl_str_mv ana@bl.fcen.uba.ar
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score 12.891075

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