Critical spectral statistics in two-dimensional interacting disordered systems
无序系统与神经网络
2009-10-31 v2 介观与纳米尺度物理
摘要
The effect of Coulomb and short-range interactions on the spectral properties of two-dimensional disordered systems with two spinless fermions is investigated by numerical scaling techniques. The size independent universality of the critical nearest level-spacing distribution allows one to find a delocalization transition at a critical disorder for any non-zero value of the interaction strength. At the critical point the spacings distribution has a small- behavior , and a Poisson-like decay at large spacings.
引用
@article{arxiv.cond-mat/9808139,
title = {Critical spectral statistics in two-dimensional interacting disordered systems},
author = {E. Cuevas},
journal= {arXiv preprint arXiv:cond-mat/9808139},
year = {2009}
}
备注
4 two-column pages, 3 eps figures, RevTeX, new results added