Related papers: Continuous Three-level Quantum Heat Engine with High Performance Under Medium Temperature Difference

Continuous Three-level Quantum Heat Engine with High Performance Under Medium Temperature Difference

URL: http://arxiv.org/abs/2303.06348v2
Date: Fri, 14 Apr 2023 01:11:26 GMT
Title: Continuous Three-level Quantum Heat Engine with High Performance Under Medium Temperature Difference
Authors: Gao-xiang Deng, Wei Shao, Yu Liu, Zheng Cui
Abstract summary: The temperature difference and dissipation modes affecting the performance of a three-level quantum heat engine were analyzed. The results indicated that the dissipation mode dominated the performance of the quantum heat engine.
Score: 5.699953634864227
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: The possibility of utilizing quantum effects to enhance the performance of quantum heat engines has been an active topic of research, but how to enhance the performance by optimizing the engine parameters needs to be further studied. In this study, the temperature difference and dissipation modes affecting the performance of a three-level quantum heat engine were analyzed using an orthogonal test. The results indicated that the dissipation mode dominated the performance of the quantum heat engine. The quantum heat engine performs best when there is only resonance and no detuning; however, when detuning exists, a lower resonance can improve the efficiency by reducing energy losses. Regarding the temperature difference, the best performance was achieved at medium temperature difference owing to the decreasing heat leakage. Finally, the quantum friction caused by the detuning could make the maximal efficiency lower than the Carnot efficiency.

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