Simple description of the anisotropic two-channel Kondo problem

Details Simple description of the anisotropic two-channel Kondo problem Simple description of the anisotropic two-channel Kondo problem

1995-04-21

arxiv.org/abs/cond-mat/9504084v2

Physics

Condensed Matter

4 pages, latex (uses revtex and epsf macros) with 3 figures - all in a self unpacking uuencoded file. Revisions include change

Scientific paper

10.1103/PhysRevLett.75.2184

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