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arXiv · 2211.03394

Interaction enhanced quantum heat engine

Mohamed Boubakour·Thomás Fogarty·Thomas Busch
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Abstract

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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Mohamed Boubakour, Thomás Fogarty, Thomas Busch. 2022-11-07. Interaction enhanced quantum heat engine. https://doi.org/10.1103/physrevresearch.5.013088

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