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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.)

Thermodynamics of Weakly Coherent Collisional Models

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Autor(es):
Rodrigues, Franklin L. S. [1] ; De Chiara, Gabriele [2] ; Paternostro, Mauro [2] ; Landi, Gabriel T. [1]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Inst Fis, BR-05314970 Sao Paulo - Brazil
[2] Queens Univ Belfast, Sch Math & Phys, Ctr Theoret Atom Mol & Opt Phys, Belfast BT7 1NN, Antrim - North Ireland
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: Physical Review Letters; v. 123, n. 14 OCT 3 2019.
Citações Web of Science: 1
Resumo

We introduce the idea of weakly coherent collisional models, where the elements of an environment interacting with a system of interest are prepared in states that are approximately thermal but have an amount of coherence proportional to a short system-environment interaction time in a scenario akin to well-known collisional models. We show that, in the continuous-time limit, the model allows for a clear formulation of the first and second laws of thermodynamics, which are modified to include a nontrivial contribution related to quantum coherence. Remarkably, we derive a bound showing that the degree of such coherence in the state of the elements of the environment represents a resource, which can be consumed to convert heat into an ordered (unitarylike) energy term in the system, even though no work is performed in the global dynamics. Our results therefore represent an instance where thermodynamics can be extended beyond thermal systems, opening the way for combining classical and quantum resources. (AU)

Processo FAPESP: 18/12813-0 - Termodinâmica quântica de sistemas bosônicos
Beneficiário:Gabriel Teixeira Landi
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 17/50304-7 - Entropy production in non-equilibrium quantum processes: from foundations to quantum technologies
Beneficiário:Gabriel Teixeira Landi
Linha de fomento: Auxílio à Pesquisa - Regular