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Patrick Potts

Postdoctoral fellow

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Quantum heat engine based on photon-assisted Cooper pair tunneling

Author

  • Patrick P. Hofer
  • J. R. Souquet
  • A. A. Clerk

Summary, in English

We propose and analyze a simple mesoscopic quantum heat engine that exhibits both high power and high efficiency. The system consists of a biased Josephson junction coupled to two microwave cavities, with each cavity coupled to a thermal bath. Resonant Cooper pair tunneling occurs with the exchange of photons between cavities, and a temperature difference between the baths can naturally lead to a current against the voltage, and hence work. As a consequence of the unique properties of Cooper-pair tunneling, the heat current is completely separated from the charge current. This combined with the strong energy selectivity of the process leads to an extremely high efficiency.

Publishing year

2016-01-22

Language

English

Publication/Series

Physical Review B

Volume

93

Issue

4

Document type

Journal article

Publisher

American Physical Society

Status

Published

ISBN/ISSN/Other

  • ISSN: 2469-9950