Single-Atom Heat Machines Enabled by Energy Quantization.

doi:10.1103/PhysRevLett.120.170601

Paper

Single-Atom Heat Machines Enabled by Energy Quantization.

Published May 31, 2017 · D. Gelbwaser-Klimovsky, A. Bylinskii, D. Gangloff

Physical review letters

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2

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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.

Study Snapshot

Energy quantization in quantum systems can enhance the performance of Otto cycle heat machines, enabling classically inconceivable designs with incompressible working substances.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

Single-Atom Heat Machines Enabled by Energy Quantization.

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Citations