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arXiv · 2211.08377

Thermodynamic uncertainty relation in nondegenerate and degenerate maser heat engines

Varinder Singh·Vahid Shaghaghi·Özgür E. Müstecaplıoğlu·Dario Rosa
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Abstract

We investigate the thermodynamic uncertainty relation (TUR), \textit{i.e.} a trade-off between entropy production rate and relative power fluctuations, for nondegenerate three-level and degenerate four-level maser heat engines. In the nondegenerate case, we consider two slightly different configurations of three-level maser heat engine and contrast their degree of violation of standard TUR. In the high-temperature limit, standard TUR relation is always violated for both configurations. We also uncover an invariance of TUR under simultaneous rescaling of the matter-field coupling constant and system-bath coupling constants. For the degenerate four level engine, we study the effects of noise-induced coherence on TUR. We show that depending on the parametric regime of operation, noise-induced coherence can either suppress or enhance the relative power fluctuations.

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Varinder Singh, Vahid Shaghaghi, Özgür E. Müstecaplıoğlu, Dario Rosa. 2022-11-15. Thermodynamic uncertainty relation in nondegenerate and degenerate maser heat engines. https://arxiv.org/abs/2211.08377

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