Single-Atom Heat Machines Enabled by Energy Quantization
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PhysRevLett.120.170601.pdf
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Author(s)
Gelbwaser-Klimovsky, David
Bylinskii, Alexei
Gangloff, Dorian
Islam, Rajibul
Aspuru-Guzik, Alán
Vuletic, Vladan
Date Issued
April 2018
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Gelbwaser-Klimovsky, David et al. "Single-Atom Heat Machines Enabled by Energy Quantization." Physical Review Letters 120, 17 (April 2018): 170601 © 2018 American Physical Society
Version
Final published version
Abstract
Quantization of energy is a quintessential characteristic of quantum systems. Here we analyze its effects on the operation of Otto cycle heat machines and show that energy quantization alone may alter and increase machine performance in terms of output work, efficiency, and even operation mode. We show that this difference in performance occurs in machines with inhomogeneous energy level scaling, while quantum machines with homogeneous level scaling behave like classical machines. Our results demonstrate that quantum thermodynamics enables the realization of classically inconceivable Otto machines, such as those with an incompressible working substance. We propose to measure these effects experimentally using a laser-cooled trapped ion as a microscopic heat machine.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Research Laboratory of Electronics
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.120.170601
