Thermodynamic uncertainty relation in nondegenerate and degenerate maser heat engines

• URL: http://arxiv.org/abs/2211.08377v2
• Date: Fri, 16 Dec 2022 09:34:36 GMT
• Title: Thermodynamic uncertainty relation in nondegenerate and degenerate maser heat engines
• Authors: Varinder Singh, Vahid Shaghaghi, \"Ozg\"ur E. M\"ustecapl{\i}o\u{g}lu, and Dario Rosa
• Abstract summary: In the nondegenerate case, we consider two slightly different configurations of three-level maser heat engine. In the high-temperature limit, standard TUR relation is always violated for both configurations. For the degenerate four level engine, we study the effects of noise-induced coherence on TUR.
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• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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