Universal two-level quantum Otto machine under a squeezed reservoir

Assis, Rogério Jorge de; Sales, José de Souza; Cunha, Jefferson Adriany Ribeiro da; Almeida, Norton Gomes de

Universal two-level quantum Otto machine under a squeezed reservoir

Data

2020

Autores

Assis, Rogério Jorge de

Sales, José de Souza

Cunha, Jefferson Adriany Ribeiro da

Almeida, Norton Gomes de

Resumo

We study an Otto heat machine whose working substance is a single two-level system interacting with a cold thermal reservoir and with a squeezed hot thermal reservoir. By adjusting the squeezing or the adiabaticity parameter (the probability of transition) we show that our two-level system can function as a universal heat machine, either producing net work by consuming heat or consuming work that is used to cool or heat environments. Using our model we study the performance of these machine in the finite-time regime of the isentropic strokes, which is a regime that contributes to make them useful from a practical point of view.

Citação

ASSIS, Rogério J. de; SALES, José S.; CUNHA, Jefferson A. R. da; ALMEIDA, Norton G. Universal two-level quantum Otto machine under a squeezed reservoir. Physical Review E: covering statistical, nonlinear, biological, and soft matter physics, Ridge, v. 102, e 052131, 2020. DOI: 10.1103/PhysRevE.102.052131. Disponível em: https://journals.aps.org/pre/abstract/10.1103/PhysRevE.102.052131. Acesso em: 8 mar. 2024.