Related papers: The Ising critical quantum Otto engine

The Ising critical quantum Otto engine

URL: http://arxiv.org/abs/2205.09528v2
Date: Fri, 30 Sep 2022 09:06:03 GMT
Title: The Ising critical quantum Otto engine
Authors: Giulia Piccitto and Michele Campisi and Davide Rossini
Abstract summary: We study a four-stroke Otto engine whose working fluid is a quantum Ising chain. We show that the engine may operate in four different operation modes, depending on the various parameters, in particular it can act as a heat engine and as a refrigerator.
Score: 0.0
License: http://creativecommons.org/licenses/by/4.0/
Abstract: We study a four-stroke Otto engine whose working fluid is a quantum Ising chain. The thermodynamic cycle consists in sweeps of the transverse magnetic field occurring in thermal isolation, alternated by thermalisation strokes with reservoirs at different temperatures. The system-environment coupling is modelled in a thermodynamically consistent way by means of a nonlocal Lindblad master equation. We show that the engine may operate in four different operation modes, depending on the various parameters, in particular it can act as a heat engine and as a refrigerator. We detect an enhancement of the thermodynamic performance as the critical point is crossed, and investigate it in detail.

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