Decoherence in a Cooper pair shuttle
介观与纳米尺度物理
2009-11-07 v3 超导电性
摘要
We examine decoherence effects in the Josephson current of a Cooper pair shuttle. Dephasing due to gate voltage fluctuations can either suppress or enhance the critical current and also change its sign. The current noise spectrum displays a peak at the Josephson coupling energy and shows a phase dependence.
引用
@article{arxiv.cond-mat/0212414,
title = {Decoherence in a Cooper pair shuttle},
author = {Alessandro Romito and Francesco Plastina and Rosario Fazio},
journal= {arXiv preprint arXiv:cond-mat/0212414},
year = {2009}
}
备注
11 pages, 5 figures; v3 (published version): major changes, added refernces