Simple description of the anisotropic two-channel Kondo problem

P. Coleman; A. J. Schofield

doi:10.1103/physrevlett.75.2184

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Simple description of the anisotropic two-channel Kondo problem

P. Coleman·A. J. Schofield

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Abstract

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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P. Coleman, A. J. Schofield. 1995-06-21. Simple description of the anisotropic two-channel Kondo problem. https://doi.org/10.1103/physrevlett.75.2184

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