World Sheet Logarithmic CFT in AdS Strings, Ghost-Matter Mixing and M-theory
Ian I. Kogan, Dimitri Polyakov
Abstract
We discuss several closely related concepts in the NSR formulation of superstring theory. We demonstrated that recently proposed NSR model for superstrings on AdS5 × S5 is described by the world-sheet logarithmic conformal field theory (LCFT). The origin of LCFT on a world-sheet is closely connected to the matter-ghost mixing in the structure of a brane-like vortex operators. We suggest a dynamical origin of M theory as a string theory with an extra dimension given by bosonised superconformal ghosts.
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