Chalker-Coddington模型的局域化性质
数学物理
2015-05-18 v2 介观与纳米尺度物理
math.MP
摘要
Chalker-Coddington量子网络逾渗模型在数值上与理解量子霍尔效应的退局域化转变相关。我们研究了限制在周长为2M的圆柱上的该模型。我们首先证明了李雅普诺夫指数是简单的,特别地,局域化长度是有限的;其次,这暗示了谱局域化。第三,我们证明了Thouless公式并计算了平均李雅普诺夫指数,该指数与M无关。
引用
@article{arxiv.1001.3625,
title = {Localization Properties of the Chalker-Coddington Model},
author = {Joachim Asch and Alain Joye and Olivier Bourget},
journal= {arXiv preprint arXiv:1001.3625},
year = {2015}
}
备注
29 pages, 1 figure. New section added in which simplicity of the Lyapunov spectrum and finiteness of the localization length are proven. To appear in Annales Henri Poincare