Supersymmetric spin operators
强关联电子
2009-10-31 v2 高能物理 - 理论
摘要
We develop a supersymmetric representation of spin operators which unifies the Schwinger and Abrikosov representations of SU(N) spin operators, allowing a second-quantized treatment of representations of the SU(N) group with both symmetric and antisymmetric character. By applying this to the SU(N) Kondo model, we show that it is possible to develop a controlled treatment of both Magnetism and the Kondo effect within a single large N expansion.
引用
@article{arxiv.cond-mat/9909073,
title = {Supersymmetric spin operators},
author = {P. Coleman and C. Pepin and A. M. Tsvelik},
journal= {arXiv preprint arXiv:cond-mat/9909073},
year = {2009}
}
备注
Typos corrected. Two column version http://www.physics.rutgers.edu/~coleman/susypaper.ps.gz