Delocalization in coupled one-dimensional chains
无序系统与神经网络
2009-10-31 v1 介观与纳米尺度物理
摘要
A weakly disordered quasi-one-dimensional tight-binding hopping model with rows is considered. The probability distribution of the Landauer conductance is calculated exactly in the middle of the band, , and it is shown that a delocalization transition at this energy takes place if and only if is odd. This even-odd effect is explained by level repulsion of the transmission eigenvalues.
引用
@article{arxiv.cond-mat/9807189,
title = {Delocalization in coupled one-dimensional chains},
author = {P. W. Brouwer and C. Mudry and B. D. Simons and A. Altland},
journal= {arXiv preprint arXiv:cond-mat/9807189},
year = {2009}
}
备注
4 pages, RevTeX; 1 figure included; to appear in Phys. Rev. Letters