SUSY t-J模型中量子杂质与边界场的相互作用
强关联电子
2007-07-19 v2 统计力学
摘要
我们研究了在具有边界势和可积杂质的超对称t-J模型的Bethe ansatz不同表述中出现的束缚态的作用。对于描述边界和杂质的特殊参数值，后者处的电荷涨落消失。束缚态的布居选择了杂质能级的不同扇区，从而产生可积近藤杂质。
引用
@article{arxiv.cond-mat/0703339,
title = {Interplay between a quantum impurity and a boundary field in the SUSY t-J model},
author = {Holger Frahm and Guillaume Palacios},
journal= {arXiv preprint arXiv:cond-mat/0703339},
year = {2007}
}
备注
16 pages, 2 figures. Changes to previous version: 1) Minus signs fixed for the impurity Lax matrix (Eq. 4), the boundary Hamiltonian (Eq. 10), and the quadratic Casimir of gl(2|1) (Eq. A.3). 2) Explicit expression of the projected Hamiltonian for s=1/2. 3) 1 reference added