Matrix model eigenvalue integrals and twist fields in the su(2)-WZW model

Abstract

We propose a formula for the eigenvalue integral of the hermitian one matrix model with infinite well potential in terms of dressed twist fields of the su(2) level one WZW model. The expression holds for arbitrary matrix size n, and provides a suggestive interpretation for the monodromy properties of the matrix model correlators at finite n, as well as in the 1/n-expansion.

27 pages, 4 figures; v2: typos corrected, reference added, version to be published in JHEP

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