Simple description of the anisotropic two-channel Kondo problem
Condensed Matter
2009-10-28 v2
Abstract
We adapt strong-coupling methods first used in the one-channel Kondo model to develop a simple description of the spin- 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.
Keywords
Cite
@article{arxiv.cond-mat/9504084,
title = {Simple description of the anisotropic two-channel Kondo problem},
author = {P. Coleman and A. J. Schofield},
journal= {arXiv preprint arXiv:cond-mat/9504084},
year = {2009}
}
Comments
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