Persistent current in metals with a large dephasing rate
介观与纳米尺度物理
2009-10-31 v1
摘要
In a weakly disordered metal electron interactions are responsible for both decoherence of the quasi-particles as well as for quantum corrections to thermodynamic properties. We consider electrons which are interacting with two-level-systems. We show that the two-level-systems enhance the average equilibrium (``persistent'') current in an ensemble of mesoscopic rings. The result supports the recent suggestion that two puzzles in mesoscopic physics may be related: The low temperature saturation of the dephasing time and the high persistent current in rings.
引用
@article{arxiv.cond-mat/0005525,
title = {Persistent current in metals with a large dephasing rate},
author = {P. Schwab},
journal= {arXiv preprint arXiv:cond-mat/0005525},
year = {2009}
}
备注
4pages, no figures