On the operation of machines powered by quantum non-thermal baths
Journal Article
·
· New Journal of Physics
Diverse models of engines energised by quantum-coherent, hence non-thermal, baths allow the engine efficiency to transgress the standard thermodynamic Carnot bound. These transgressions call for an elucidation of the underlying mechanisms. Here we show that non-thermal baths may impart not only heat, but also mechanical work to a machine. The Carnot bound is inapplicable to such a hybrid machine. Intriguingly, it may exhibit dual action, concurrently as engine and refrigerator, with up to 100% efficiency. Here, we conclude that even though a machine powered by a quantum bath may exhibit an unconventional performance, it still abides by the traditional principles of thermodynamics.
- Research Organization:
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0001088 (energy conversion pro; SC0001088
- OSTI ID:
- 1280197
- Alternate ID(s):
- OSTI ID: 1280198; OSTI ID: 1436299
- Journal Information:
- New Journal of Physics, Journal Name: New Journal of Physics Vol. 18 Journal Issue: 8; ISSN 1367-2630
- Publisher:
- IOP PublishingCopyright Statement
- Country of Publication:
- United Kingdom
- Language:
- English
Cited by: 99 works
Citation information provided by
Web of Science
Web of Science
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