Single-Atom Heat Machines Enabled by Energy Quantization
- Harvard Univ., Cambridge, MA (United States)
- Univ. of Cambridge (United Kingdom); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Univ. of Waterloo, ON (Canada)
- 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
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Quantum energy exchange and refrigeration: a full-counting statistics approach
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An out-of-equilibrium non-Markovian quantum heat engine
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Quantum mechanical bound for efficiency of quantum Otto heat engine
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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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