Optimizing autonomous thermal machines powered by energetic coherence

Autor:	Kenza Hammam, Yassine Hassouni, Rosario Fazio, Gonzalo Manzano
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	quantum thermodynamics autonomous thermal machine quantum heat engine quantum refrigerator coherence nonequilibrium thermodynamics Science Physics QC1-999
Zdroj:	New Journal of Physics, Vol 23, Iss 4, p 043024 (2021)
Druh dokumentu:	article
ISSN:	1367-2630 50973649
DOI:	10.1088/1367-2630/abeb47
Popis:	The characterization and control of quantum effects in the performance of thermodynamic tasks may open new avenues for small thermal machines working in the nanoscale. We study the impact of coherence in the energy basis in the operation of a small thermal machine which can act either as a heat engine or as a refrigerator. We show that input coherence may enhance the machine performance and allow it to operate in otherwise forbidden regimes. Moreover, our results also indicate that, in some cases, coherence may also be detrimental, rendering optimization of particular models a crucial task for benefiting from coherence-induced enhancements.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/6bd01c13121b4387a50973649d5de7a4 Zobrazit plný text záznamu View record in DOAJ