Critical points in two-dimensional replica sigma models
强关联电子
2007-05-23 v1 无序系统与神经网络
摘要
I survey the kinds of critical behavior believed to be exhibited in two-dimensional disordered systems. I review the different replica sigma models used to describe the low-energy physics, and discuss how critical points appear because of WZW and theta terms.
引用
@article{arxiv.cond-mat/0006360,
title = {Critical points in two-dimensional replica sigma models},
author = {Paul Fendley},
journal= {arXiv preprint arXiv:cond-mat/0006360},
year = {2007}
}
备注
19 pages; Lecture at the NATO Advanced Study Institute/EC Summer School on New Theoretical Approaches to Strongly Correlated Systems, Newton Institute, Cambridge, UK, April 10-20, 2000