Holography, Singularities on Orbifolds and 4D N=2 SQCD

Details Holography, Singularities on Orbifolds and 4D N=2 SQCD Holography, Singularities on Orbifolds and 4D N=2 SQCD

2000-01-10

arxiv.org/abs/hep-th/0001054v1

JHEP 0003:012,2000

Physics

High Energy Physics

High Energy Physics - Theory

33 pages (Latex)

Scientific paper

10.1088/1126-6708/2000/03/012

Type II string theory compactified on a Calabi-Yau manifold, with a singularity modeled by a hypersurface in an orbifold, is considered. In the limit of vanishing string coupling, one expects a non gravitational theory concentrated at the singularity. It is proposed that this theory is holographicly dual to a family of ``non-critical'' superstring vacua, generalizing a previous proposal for hypersurfaces in flat space. It is argued that a class of such singularities is relevant for the study of non-trivial IR fixed points that appear in the moduli space of four-dimensional N=2 SQCD: SU(N_c) gauge theory with matter in the fundamental representation. This includes the origin in the moduli space of the SU(N_c) gauge theory with N_f=2N_c fundamentals. The 4D IR fixed points are studied using the anti-holographic description and the results agree with information available from gauge theory.

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