Special geometry of local Calabi-Yau manifolds and superpotentials from holomorphic matrix models

Details Special geometry of local Calabi-Yau manifolds and superpotentials from holomorphic matrix models Special geometry of local Calabi-Yau manifolds and superpotentials from holomorphic matrix models

2005-03-23

arxiv.org/abs/hep-th/0503173v1

JHEP 0508:097,2005

Physics

High Energy Physics

High Energy Physics - Theory

40 pages, 4 figures

Scientific paper

10.1088/1126-6708/2005/08/097

We analyse the (rigid) special geometry of a class of local Calabi-Yau manifolds given by hypersurfaces in C^4 as W'(x)^2+f_0(x)+v^2+w^2+z^2=0, that arise in the study of the large N duals of four-dimensional N=1 supersymmetric SU(N) Yang-Mills theories with adjoint field \Phi and superpotential W(\Phi). The special geometry relations are deduced from the planar limit of the corresponding holomorphic matrix model. The set of cycles is split into a bulk sector, for which we obtain the standard rigid special geometry relations, and a set of relative cycles, that come from the non-compactness of the manifold, for which we find cut-off dependent corrections to the usual special geometry relations. The (cut-off independent) prepotential is identified with the (analytically continued) free energy of the holomorphic matrix model in the planar limit. On the way, we clarify various subtleties pertaining to the saddle point approximation of the holomorphic matrix model. A formula for the superpotential of IIB string theory with background fluxes on these local Calabi-Yau manifolds is proposed that is based on pairings similar to the ones of relative cohomology.

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