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arXiv 2211.03394quant-phcond-mat.stat-mech
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相互作用增强的量子热机

Interaction enhanced quantum heat engine

Mohamed Boubakour, Thomás Fogarty, Thomas Busch

摘要:

研究了一个最小量子奥托热机,其中的工作介质是一个谐振子阱中的相互作用少体系统。这允许我们将交互强度视为工作冲程期间的附加可调参数。我们计算的优点,这台发动机作为一个函数的温度,并清楚地显示在哪些参数制度的相互作用,协助发动机的性能。我们还研究了有限时间动力学和随后的效率和功率之间的权衡,比较相互作用增强的循环与系统保持尺度不变的情况。

英文摘要:

We study a minimal quantum Otto heat engine, where the working medium consists of an interacting few-body system in a harmonic trap. This allows us to consider the interaction strength as an additional tunable parameter during the work strokes. We calculate the figures of merit of this engine as a function of the temperature and show clearly in which parameter regimes the interactions assist in engine performance. We also study the finite time dynamics and the subsequent trade-off between the efficiency and the power, comparing the interaction enhanced cycle with the case where the system remains scale-invariant.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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