Interaction enhanced quantum heat engine
arXiv:2211.03394 · doi:10.1103/PhysRevResearch.5.013088
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.
9 pages, 8 figures
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- Enhanced performance of sudden-quench quantum Otto cycles via multi-parameter control