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Thermodynamic uncertainty relation in nondegenerate and degenerate maser heat engines

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Title
Thermodynamic uncertainty relation in nondegenerate and degenerate maser heat engines
Author(s)
Varinder Singh; Vahid Shaghaghi; Müstecaplloǧlu, Özgür E.; Dario Rosa
Publication Date
2023-09
Journal
Physical Review A, v.108, no.3
Publisher
American Physical Society
Abstract
We investigate the thermodynamic uncertainty relation (TUR), i.e., a tradeoff 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 the three-level maser heat engine and contrast their degree of violation of the standard TUR. We associate their different TUR-violating properties to the phenomenon of spontaneous emission, which gives rise to an asymmetry between them. Furthermore, in the high-temperature limit, we show that the standard TUR relation is always violated for both configurations. For the degenerate four-level engine, we study the effects of noise-induced coherence on the TUR. We show that, depending on the parametric regime of operation, noise-induced coherence can either suppress or amplify the relative power fluctuations. © 2023 American Physical Society.
URI
https://pr.ibs.re.kr/handle/8788114/14141
DOI
10.1103/PhysRevA.108.032203
ISSN
2469-9926
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > 1. Journal Papers (저널논문)
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