Thermodynamics of a continuous quantum heat engine: Interplay between
population and coherence
- URL: http://arxiv.org/abs/2107.05952v2
- Date: Wed, 6 Oct 2021 06:33:07 GMT
- Title: Thermodynamics of a continuous quantum heat engine: Interplay between
population and coherence
- Authors: Pablo Bayona-Pena, Kazutaka Takahashi
- Abstract summary: We present a detailed thermodynamic analysis of a three-level quantum heat engine coupled continuously to hot and cold reservoirs.
The system is driven by an oscillating external field and is described by the Markovian quantum master equation.
We calculate the heat, power, and efficiency of the system for the heat-engine operating regime and also examine the thermodynamic uncertainty relation.
- Score: 0.0
- License: http://creativecommons.org/licenses/by-nc-sa/4.0/
- Abstract: We present a detailed thermodynamic analysis of a three-level quantum heat
engine coupled continuously to hot and cold reservoirs. The system is driven by
an oscillating external field and is described by the Markovian quantum master
equation. We use the general form of the dissipator which is consistent with
thermodynamics. We calculate the heat, power, and efficiency of the system for
the heat-engine operating regime and also examine the thermodynamic uncertainty
relation. The efficiency of the system is strongly dependent on the structure
of the dissipator, and the correlations between different levels can be an
obstacle for ideal operation. In quantum systems, the heat flux is decomposed
into the population and coherent parts. The coherent part is specific to
quantum systems, and in contrast to the population part, it cannot be expressed
by a simple series expansion in the linear-response regime. We discuss how the
interplay between the population and coherent parts affects the performance of
the heat engine.
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