Quantum supremacy of many-particle thermal machines

While the emergent field of quantum thermodynamics has the potential to impact energy science, the performance of thermal machines is often classical. We ask whether quantum effects can boost the performance of a thermal machine to reach quantum supremacy, i.e., surpassing both the efficiency and po...

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Bibliographic Details
Published inNew journal of physics Vol. 18; no. 7; pp. 75019 - 75039
Main Authors Jaramillo, J, Beau, M, Campo, A del
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 26.07.2016
Subjects
03.65.-w
03.65.Ta
Calogero-Sutherland model
Heat engines
interacting Bose gas
Otto cycle
Physics
Power efficiency
quantum heat engines
quantum thermodynamics
Thermodynamics
Time dependence
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Summary:While the emergent field of quantum thermodynamics has the potential to impact energy science, the performance of thermal machines is often classical. We ask whether quantum effects can boost the performance of a thermal machine to reach quantum supremacy, i.e., surpassing both the efficiency and power achieved in classical thermodynamics. To this end, we introduce a nonadiabatic quantum heat engine operating an Otto cycle with a many-particle working medium, consisting of an interacting Bose gas confined in a time-dependent harmonic trap. It is shown that thanks to the interplay of nonadiabatic and many-particle quantum effects, this thermal machine can outperform an ensemble of single-particle heat engines with same resources, demonstrating the quantum supremacy of many-particle thermal machines.
Bibliography:NJP-104938.R1
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ISSN:1367-2630
1367-2630
DOI:10.1088/1367-2630/18/7/075019