Abelian bosonization approach to quantum impurity problems
强关联电子
2009-10-28 v2
摘要
Using Abelian Bosonization, we develop a simple and powerful method to calculate the correlation functions of the two channel Kondo model and its variants. The method can also be used to identify all the possible boundary fixed points and their maximum symmetry, to calculate straightforwardly the finite size spectra, to demonstrate the physical picture at the boundary explicitly. Comparisons with Non-Abelian Bosonization method are made. Some fixed points corresponding to 4 pieces of bulk fermions coupled to s=1/2 impurity are listed.
引用
@article{arxiv.cond-mat/9612029,
title = {Abelian bosonization approach to quantum impurity problems},
author = {Jinwu Ye},
journal= {arXiv preprint arXiv:cond-mat/9612029},
year = {2009}
}
备注
12 pages, REVTEX, 1 Table, no figures. To appear in Phys. Rev. Letts. July 21, 1997