Exact finite-size spectrum for the multi-channel Kondo model and Kac-Moody fusion rules

Details Exact finite-size spectrum for the multi-channel Kondo model and Kac-Moody fusion rules Exact finite-size spectrum for the multi-channel Kondo model and Kac-Moody fusion rules

1995-08-25

arxiv.org/abs/cond-mat/9508110v1

Physics

Condensed Matter

RevTex, 4 pages

Scientific paper

10.1103/PhysRevB.52.R13102

The finite-size spectrum for the multi-channel Kondo model is derived analytically from the exact solution, by mapping the nontrivial Z$_{n}$ part of the Kondo scattering into that for the RSOS model coupled with the impurity. The analysis is performed for the case of $n-2S=1$, where $n$ is the number of channel and $S$ is the impurity spin. The result obtained is in accordance with the Kac-Moody fusion hypothesis proposed by Affleck and Ludwig.

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