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Title: Single-Atom Heat Machines Enabled by Energy Quantization

Journal Article · · Physical Review Letters
 [1];  [1];  [2];  [3];  [1];  [4]
  1. Harvard Univ., Cambridge, MA (United States)
  2. Univ. of Cambridge (United Kingdom); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  3. Univ. of Waterloo, ON (Canada)
  4. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

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. Finally, we propose to measure these effects experimentally using a laser-cooled trapped ion as a microscopic heat machine.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Center for Excitonics (CE)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0001088
OSTI ID:
1470508
Alternate ID(s):
OSTI ID: 1434568
Journal Information:
Physical Review Letters, Vol. 120, Issue 17; Related Information: CE partners with Massachusetts Institute of Technology (lead); Brookhaven National Laboratory; Harvard University; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 36 works
Citation information provided by
Web of Science

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Cited By (6)

Anti-Zeno quantum advantage in fast-driven heat machines journal January 2020
Quantum energy exchange and refrigeration: a full-counting statistics approach journal August 2018
An out-of-equilibrium non-Markovian quantum heat engine journal January 2019
Quantum mechanical bound for efficiency of quantum Otto heat engine journal July 2019
Critical-point behavior of a measurement-based quantum heat engine text January 2018
Anti-Zeno quantum advantage in fast-driven heat machines text January 2019

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