Quantum heat engine based on photon-assisted Cooper pair tunneling
| Autor: | Aashish A. Clerk, Patrick P. Hofer, J. R. Souquet |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Josephson effect
Physics Quantum Physics Mesoscopic physics Photon Heat current Condensed Matter - Mesoscale and Nanoscale Physics Condensed matter physics FOS: Physical sciences Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 01 natural sciences 7. Clean energy 010305 fluids & plasmas Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 0103 physical sciences Superconducting tunnel junction Cooper pair Quantum Physics (quant-ph) 010306 general physics Quantum tunnelling Heat engine |
| Zdroj: | Physical Review B |
| ISSN: | 2469-9969 2469-9950 |
| DOI: | 10.1103/physrevb.93.041418 |
| Popis: | 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. Comment: Published version. Main text: 5 pages, 3 figures; Supplement: 1 page |
| Databáze: | OpenAIRE |
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