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A Matrix Model for WZW

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arxiv 1604.05711 v3 pith:HNMJYJHH submitted 2016-04-19 hep-th cond-mat.str-el

A Matrix Model for WZW

classification hep-th cond-mat.str-el
keywords matrixmodelfunctionlargelimitpartitionquantumalgebra
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We study a U(N) gauged matrix quantum mechanics which, in the large N limit, is closely related to the chiral WZW conformal field theory. This manifests itself in two ways. First, we construct the left-moving Kac-Moody algebra from matrix degrees of freedom. Secondly, we compute the partition function of the matrix model in terms of Schur and Kostka polynomials and show that, in the large $N$ limit, it coincides with the partition function of the WZW model. This same matrix model was recently shown to describe non-Abelian quantum Hall states and the relationship to the WZW model can be understood in this framework.

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