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

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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...

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Autores principales: Arrachea, L., Rizzo, B.
Formato: Documento de conferencia publishedVersion
Publicado: 2013
Materias:
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
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_17426588_v427_n_p_Arrachea
https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_17426588_v427_n_p_Arrachea_oai
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Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires
id I28-R145-paper_17426588_v427_n_p_Arrachea_oai
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spelling I28-R145-paper_17426588_v427_n_p_Arrachea_oai2024-08-16 Arrachea, L. Rizzo, B. 2013 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. application/pdf http://hdl.handle.net/20.500.12110/paper_17426588_v427_n_p_Arrachea info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar J. Phys. Conf. Ser. 2013;427 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 Nonequilibrium Green's functions in the study of heat transport of driven nanomechanical systems info:eu-repo/semantics/conferenceObject info:ar-repo/semantics/documento de conferencia info:eu-repo/semantics/publishedVersion https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_17426588_v427_n_p_Arrachea_oai
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-145
collection Repositorio Digital de la Universidad de Buenos Aires (UBA)
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
spellingShingle 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
Arrachea, L.
Rizzo, B.
Nonequilibrium Green's functions in the study of heat transport of driven nanomechanical systems
topic_facet 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
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.
format Documento de conferencia
Documento de conferencia
publishedVersion
author Arrachea, L.
Rizzo, B.
author_facet Arrachea, L.
Rizzo, B.
author_sort Arrachea, L.
title Nonequilibrium Green's functions in the study of heat transport of driven nanomechanical systems
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
publishDate 2013
url http://hdl.handle.net/20.500.12110/paper_17426588_v427_n_p_Arrachea
https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_17426588_v427_n_p_Arrachea_oai
work_keys_str_mv AT arracheal nonequilibriumgreensfunctionsinthestudyofheattransportofdrivennanomechanicalsystems
AT rizzob nonequilibriumgreensfunctionsinthestudyofheattransportofdrivennanomechanicalsystems
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