Article (Scientific journals)
Carnot efficiency at divergent power output
Polettini, Matteo; Esposito, Massimiliano
2017In Europhysics Letters, 118 (40003)
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Keywords :
Nonequilibrium and irreversible thermodynamics; Markov processes
Abstract :
[en] The widely debated feasibility of thermodynamic machines achieving Carnot efficiency at finite power has been convincingly dismissed. Yet, the common wisdom that efficiency can only be optimal in the limit of infinitely slow processes overlooks the dual scenario of infinitely fast processes. We corroborate that efficient engines at divergent power output are not theoretically impossible, framing our claims within the theory of Stochastic Thermodynamics. We inspect the case of an electronic quantum dot coupled to three particle reservoirs to illustrate the physical rationale.
Disciplines :
Physics
Author, co-author :
Polettini, Matteo ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Esposito, Massimiliano  ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
External co-authors :
no
Language :
English
Title :
Carnot efficiency at divergent power output
Publication date :
24 July 2017
Journal title :
Europhysics Letters
ISSN :
1286-4854
Publisher :
EDP Sciences, Les Ulis, France
Volume :
118
Issue :
40003
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Physics and Materials Science
FnR Project :
FNR1165601 - A New Thermodynamic Theory For Small Fluctuating Systems: From Nanodevices To Cellular Biology, 2011 (01/01/2012-30/06/2017) - Massimiliano Esposito
Funders :
FNR - Fonds National de la Recherche [LU]
Available on ORBilu :
since 29 September 2017

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