Simple description of the anisotropic two-channel Kondo problem

Дата и время публикации : 1995-04-21T06:30:06Z

Авторы публикации и институты :
P. Coleman
A. J. Schofield

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 4 pages, latex (uses revtex and epsf macros) with 3 figures – all in a self unpacking uuencoded file. Revisions include changes to Fig. 1(a) and detailed discussion of the spin excitations
Первичная категория: cond-mat

Все категории : cond-mat

Краткий обзор статьи: We adapt strong-coupling methods first used in the one-channel Kondo model to develop a simple description of the spin-$1over 2$ 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.

Category: Physics