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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Irreversibility at zero temperature from the perspective of the environment

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Autor(es):
Santos, Jader P. [1] ; de Paula Jr, Alberto L. ; Drumond, Raphael [2] ; Landi, Gabriel T. [1] ; Paternostro, Mauro [3]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Inst Fis, BR-05314970 Sao Paulo - Brazil
[2] de Paula Jr, Jr., Alberto L., Univ Fed Minas Gerais, Inst Ciencias Exatas, Dept Fis, BR-30123970 Belo Horizonte, MG - Brazil
[3] Queens Univ Belfast, Sch Math & Phys, Ctr Theoret Atom Mol & Opt Phys, Belfast BT7 1NN, Antrim - North Ireland
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: Physical Review A; v. 97, n. 5 MAY 15 2018.
Citações Web of Science: 3
Resumo

We address the emergence of entropy production in the nonequilibrium process of an open quantum system from the viewpoint of the environment. By making use of a dilation-based approach akin to the Stinespring theorem, we derive an expression for the entropy production that comprises two fundamental contributions. The first is linked to the rate of the creation of correlations between the system and environment whereas the second highlights the possibility for the environment to modify its state in light of its coupling to the system. Both terms are shown to be associated with irreversible currents within the system and the environment, which pinpoint the emergence of irreversibility in the Markovian limit. Finally, we discuss how such a change of perspective in the study of entropy production has fecund implications for the study of non-Markovian open-system dynamics. (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