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Thermal conductance of a two-level atom coupled to two quantum harmonic oscillators

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Autor(es):
Guimaraes, Pedro H. ; Landi, Gabriel T. ; de Oliveira, Mario J.
Número total de Autores: 3
Tipo de documento: Artigo Científico
Fonte: Physical Review E; v. 95, n. 4 APR 5 2017.
Citações Web of Science: 1
Resumo

We have determined the thermal conductance of a system consisting of a two-level atom coupled to two quantum harmonic oscillators in contact with heat reservoirs at distinct temperatures. The calculation of the heat flux as well as the atomic population and the rate of entropy production are obtained by the use of a quantum Fokker-Planck-Kramers equation and by a Lindblad master equation. The calculations are performed for small values of the coupling constant. The results coming from both approaches show that the conductance is proportional to the coupling constant squared and that, at high temperatures, it is proportional to the inverse of temperature. (AU)

Processo FAPESP: 16/08721-7 - Modelagem estocástica de sistemas quânticos fora do equilíbrio
Beneficiário:Gabriel Teixeira Landi
Linha de fomento: Auxílio à Pesquisa - Regular