A Lie algebraic approach to the Kondo problem

被引：1
|
作者：
Rajeev, S. G. [1 ]
机构：
[1] Univ Rochester, Dept Math, Dept Phys & Astron, Rochester, NY 14627 USA
来源：
ANNALS OF PHYSICS | 2010年 / 325卷 / 04期
关键词：
Renormalization; Kondo problem; Large N; Lie algebra;
D O I：
10.1016/j.aop.2010.01.004
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The Kondo problem is approached using the unitary Lie algebra of spin-singlet fermion bilinears. In the limit when the number of values of the spin N goes to infinity the theory approaches a classical limit, which still requires a renormalization. We determine the ground state of this renormalized theory. Then we construct a quantum theory around this classical limit, which amounts to recovering the case of finite N. (C) 2010 Elsevier Inc. All rights reserved.
引用
收藏
页码：899 / 908
页数：10
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