Arbitrary Spacetimes from the SL(2,R)/U(1) Coset Model

TL;DR

This paper demonstrates that the gauged SL(2,R) WZWN model can generate a wide variety of two-dimensional spacetimes, including known cases like the c=1 matter field and black hole singularities.

Contribution

It introduces a method to produce arbitrary 2D spacetimes from the SL(2,R)/U(1) coset model, expanding the understanding of spacetime solutions in string theory.

Findings

The model can generate a broad class of 2D spacetimes.

Known solutions like the c=1 matter field and black hole singularities are special cases.

The approach provides a unified framework for diverse 2D geometries.

Abstract

We show that the gauged SL(2,R) WZWN model yields arbitrary spacetimes in two dimensions. The c = 1 matter field and the black hole singularity are just two particular cases in these spacetimes.