Interaction enhanced quantum heat engine
Quantum Physics
2023-02-10 v2 Statistical Mechanics
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.
Cite
@article{arxiv.2211.03394,
title = {Interaction enhanced quantum heat engine},
author = {Mohamed Boubakour and Thomás Fogarty and Thomas Busch},
journal= {arXiv preprint arXiv:2211.03394},
year = {2023}
}
Comments
9 pages, 8 figures