SIMPLE DESCRIPTION OF THE ANISOTROPIC 2-CHANNEL KONDO PROBLEM

被引：33
|
作者：
COLEMAN, P
SCHOFIELD, AJ
机构：
[1] Department of Physics, Rutgers University, Piscataway, NJ 08855-0849
来源：
PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 11期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRevLett.75.2184
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We adapt the strong-coupling method first used in the one-channel Kondo model to develop a simple description of the spin-1/2 two-channel Kondo model with channel anisotropy. Our method exploits spin-charge decoupling to develop a compactified Hamiltonian that describes the spin excitations. The structure of the fixed-point Hamiltonian and quasiparticle impurity S matrix are incompatible with a Fermi-liquid description.
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页码：2184 / 2187
页数：4
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