Persistent current on a disordered mesoscopic ring with an embedded quantum dot
介观与纳米尺度物理
2007-05-23 v1 无序系统与神经网络
摘要
We calculate the ensemble averaged persistent current on disordered mesoscopic rings with an embedded quantum dot. We model the quantum dot as a single resonance and use Random Matrix Theory to model the impurities in the ring. Using Efetov's supersymmetry technique, we develop an analytical expression for the current. We find not only one, but two resonance peaks in the current. This is interpreted as quantum interference phenomenon.
关键词
引用
@article{arxiv.cond-mat/0512684,
title = {Persistent current on a disordered mesoscopic ring with an embedded quantum dot},
author = {E. H. Martins Ferreira and M. C. Nemes and H. A. Weidenmueller},
journal= {arXiv preprint arXiv:cond-mat/0512684},
year = {2007}
}
备注
5 pages, 4 figures