Anomalous Josephson current through a spin-orbit coupled quantum dot
Superconductivity
2015-05-14 v1 Mesoscale and Nanoscale Physics
Abstract
For a general model of a mesoscopic multi-level quantum dot, we determine the necessary conditions for the existence of an anomalous Josephson current with spontaneously broken time-reversal symmetry. They correspond to a finite spin-orbit coupling, a suitably oriented Zeeman field, and the dot being a chiral conductor. We provide analytical expressions for the anomalous supercurrent covering a wide parameter regime.
Keywords
Cite
@article{arxiv.0909.3036,
title = {Anomalous Josephson current through a spin-orbit coupled quantum dot},
author = {A. Zazunov and R. Egger and T. Jonckheere and T. Martin},
journal= {arXiv preprint arXiv:0909.3036},
year = {2015}
}
Comments
4 pages, 2 figures, accepted to PRL