Three-Dimensional Gravity and String Ghosts

TL;DR

This paper demonstrates that string diffeomorphism ghosts can be understood through three-dimensional gravity and topological field theory, providing a new perspective on their origin.

Contribution

It introduces a novel explanation for string ghosts using three-dimensional physics, linking string theory structures to topological field theory.

Findings

String ghosts are explained via 3D gravity.

The approach applies to simple topologies.

Provides a new conceptual framework for string theory.

Abstract

It is known that much of the structure of string theory can be derived from three-dimensional topological field theory and gravity. We show here that, at least for simple topologies, the string diffeomorphism ghosts can also be explained in terms of three-dimensional physics.