Real decoupling ghost quantization of the CGHS model for two dimensional black holes

TL;DR

This paper presents a complete quantization of the CGHS model with Strominger term, resulting in a ghost-free, conformally invariant theory that predicts positive Hawking radiation for two-dimensional black holes.

Contribution

It introduces a ghost-free, conformally invariant quantization of the CGHS model including the Strominger term, with analysis of its physical implications.

Findings

Ghost-free, conformally invariant theory achieved

Positive definite Hawking radiation confirmed

Complete RST quantization of the model performed

Abstract

A complete RST quantization of a CGHS model plus Strominger term is carried out. In so doing a conformal invariant theory with $\kappa=\frac{N}{12}$ is found, that is, without ghosts contribution. The physical consequences of the model are analysed and positive definite Hawking radiation is found.