paper

The uses of the refined matrix model recursion

arXiv:1010.1210 · doi:10.1063/1.3587063

Abstract

We study matrix models in the beta ensemble by building on the refined recursion relation proposed by Chekhov and Eynard. We present explicit results for the first beta-deformed corrections in the one-cut and the two-cut cases, as well as two applications to supersymmetric gauge theories: the calculation of superpotentials in N=1 gauge theories, and the calculation of vevs of surface operators in superconformal N=2 theories and their Liouville duals. Finally, we study the beta deformation of the Chern-Simons matrix model. Our results indicate that this model does not provide an appropriate description of the Omega-deformed topological string on the resolved conifold, and therefore that the beta-deformation might provide a different generalization of topological string theory in toric Calabi-Yau backgrounds.

29 pages, 2 figures; v2: minor changes, references added; v3: few misprints fixed, to appear on JMP; v4: we correct a mistake in Eq. (2.60) (now (2.63))

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