Black Hole Thermodynamics without Black Hole Solutions

TL;DR

This paper introduces a method to derive thermodynamic properties of charged black holes in string-inspired theories without explicitly solving for black hole solutions, broadening the tools available for black hole thermodynamics.

Contribution

The authors present a novel technique to compute black hole thermodynamics directly from the theory, bypassing the need for explicit solutions, applicable to a wide range of string-inspired models.

Findings

Derived thermodynamic quantities without explicit solutions

Applicable to various string-theory inspired black holes

Provides an accessible method for complex models

Abstract

We consider the string-theory inspired Einstein-Maxwell-Maxwell-dilaton theory (EMMD) and show that we can derive the complete set of thermodynamic quantities of charged black holes, without having to solve for the black hole solutions. We argue that the technique can be applied more broadly to string theories, providing an accessible method for determining the thermodynamic properties of large classes of black holes for which exact solutions are typically unavailable.