String Theory Seminar
Wednesday, September 15, 1999, 1:00pm, 246 Physics
Oskar Pelc (University of Chicago)
Holography in the Non-Critical Superstring
Abstract:
A ``non-critical superstring'' is a superstring in a background containing a linearly-varying dilaton. It is argued that a class of such vacua is holographically related to a (non-gravitational) theory obtained by studying string theory on a singular Calabi-Yau manifold, in the limit of vanishing string coupling. Adding fundamental strings at a two-dimensional singularity leads to conformal field theories dual to a class of superstring vacua with an AdS3 factor. Some four-dimensional singularities are related to a theory on a NS5 brane wrapped around a Riemann surface, which is relevant in the realization of four-dimensional gauge theories via branes.

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