World Sheet Logarithmic CFT in AdS Strings, Ghost-Matter Mixing and M-theory

TL;DR

This paper explores the connection between world-sheet logarithmic conformal field theories in superstring models, matter-ghost mixing, and a proposed dynamical origin of M-theory involving an extra dimension from bosonised ghosts.

Contribution

It demonstrates that the superstring model on AdS_5 x S^5 is described by LCFT and proposes a novel M-theory origin involving ghost-induced extra dimensions.

Findings

Superstring on AdS_5 x S^5 is described by LCFT.

Matter-ghost mixing is linked to world-sheet LCFT.

Proposes M-theory as a string theory with an extra dimension from bosonised ghosts.

Abstract

We discuss several closely related concepts in the NSR formulation of superstring theory. We demonstrated that recently proposed NSR model for superstrings on $AdS_5 \times S^5$ 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.