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arXiv · hep-th/0411049

On Unitary/Hermitian Duality in Matrix Models

Shun'ya Mizoguchi
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Abstract

Unitary 1-matrix models are shown to be exactly equivalent to hermitian 1-matrix models coupled to 2N vectors with appropriate potentials, to all orders in the 1/N expansion. This fact allows us to use all the techniques developed and results obtained in hermitian 1-matrix models to investigate unitary as well as other 1-matrix models with the Haar measure on the unitary group. We demonstrate the use of this duality in various examples, including: (1) an explicit confirmation that the unitary matrix formulation of the N=2 pure SU(2) gauge theory correctly reproduces the genus-1 topological string amplitude (2) derivations of the special geometry relations in unitary as well as the Chern-Simons matrix models.

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Shun'ya Mizoguchi. 2004-11-16. On Unitary/Hermitian Duality in Matrix Models. https://doi.org/10.1016/j.nuclphysb.2005.03.035

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