论文标题

相互作用增强的量子热发动机

Interaction enhanced quantum heat engine

论文作者

Boubakour, Mohamed, Fogarty, Thomás, Busch, Thomas

论文摘要

我们研究了最小的量子奥托热发动机,其中工作介质由谐波陷阱中的几个体系统组成。这使我们可以将相互作用强度视为工作中的附加可调参数。我们计算该发动机的功绩作为温度的函数,并清楚地显示了哪种参数态度的相互作用有助于发动机性能。我们还研究了有限的时间动态以及效率和功率之间的随后权衡,将相互作用增强的周期与系统保持规模不变的情况进行了比较。

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.

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