Autonomous Quantum Refrigerator in a Circuit-QED Architecture Based on a Josephson Junction
Abstract
An implementation of a small quantum absorption refrigerator in a circuit QED architecture is proposed. The setup consists of three harmonic oscillators coupled to a Josephson unction. The refrigerator is autonomous in the sense that it does not require any external control for cooling, but only thermal contact between the oscillators and heat baths at different temperatures. In addition, the setup features a built-in switch, which allows the cooling to be turned on and off. If timing control is available, this enables the possibility for coherence-enhanced cooling. Finally, we show that significant cooling can be achieved with experimentally realistic parameters and that our setup should be within reach of current technology.
Keywords
Cite
@article{arxiv.1607.05218,
title = {Autonomous Quantum Refrigerator in a Circuit-QED Architecture Based on a Josephson Junction},
author = {Patrick P. Hofer and Martí Perarnau-Llobet and Jonatan Bohr Brask and Ralph Silva and Marcus Huber and Nicolas Brunner},
journal= {arXiv preprint arXiv:1607.05218},
year = {2016}
}
Comments
Main text: 5 pages, 3 figures; Supplement: 2 pages, 2 figures; Published version