Power enhancement of heat engines via correlated thermalization in a three-level “working fluid”
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Gelbwaser-Klimovsky, David
Niedenzu, Wolfgang
Brumer, Paul
Kurizki, Gershon
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https://doi.org/10.1038/srep14413Metadata
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Gelbwaser-Klimovsky, David, Wolfgang Niedenzu, Paul Brumer, and Gershon Kurizki. 2015. “Power enhancement of heat engines via correlated thermalization in a three-level “working fluid”.” Scientific Reports 5 (1): 14413. doi:10.1038/srep14413. http://dx.doi.org/10.1038/srep14413.Abstract
We explore means of maximizing the power output of a heat engine based on a periodically-driven quantum system that is constantly coupled to hot and cold baths. It is shown that the maximal power output of such a heat engine whose “working fluid” is a degenerate V-type three-level system is that generated by two independent two-level systems. Hence, level degeneracy is a thermodynamic resource that may effectively double the power output. The efficiency, however, is not affected. We find that coherence is not an essential asset in such multilevel-based heat engines. The existence of two thermalization pathways sharing a common ground state suffices for power enhancement.Other Sources
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4585770/pdf/Terms of Use
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