Quantum heat engine based on photon-assisted Cooper pair tunneling
Mesoscale and Nanoscale Physics
2016-02-10 v2 Quantum Physics
Abstract
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.
Cite
@article{arxiv.1512.02165,
title = {Quantum heat engine based on photon-assisted Cooper pair tunneling},
author = {Patrick P. Hofer and J. -R. Souquet and Aashish A. Clerk},
journal= {arXiv preprint arXiv:1512.02165},
year = {2016}
}
Comments
Published version. Main text: 5 pages, 3 figures; Supplement: 1 page