Thermodynamic universality of quantum Carnot engines
Journal Article
·
· Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Univ. of Silesia, Katowice (Poland)
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
The Carnot statement of the second law of thermodynamics poses an upper limit on the efficiency of all heat engines. Recently, it has been studied whether generic quantum features such as coherence and quantum entanglement could allow for quantum devices with efficiencies larger than the Carnot efficiency. The present study shows that this is not permitted by the laws of thermodynamic —independent of the model. We will show that rather the definition of heat has to be modified to account for the thermodynamic cost of maintaining non-Gibbsian equilibrium states. As a result, our theoretical findings are illustrated for two experimentally relevant examples.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1233539
- Alternate ID(s):
- OSTI ID: 1224650
- Report Number(s):
- LA--UR-15-21740
- Journal Information:
- Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics, Journal Name: Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics Journal Issue: 4 Vol. 92; ISSN 1539-3755; ISSN PLEEE8
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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