# Black Hole Thermodynamics: General Relativity and Beyond

## TL;DR

This paper reviews the laws of black hole thermodynamics within general relativity and extended theories, highlighting how these laws can inform and constrain new physics beyond Einstein's theory.

## Contribution

It provides a comprehensive survey of black hole thermodynamics laws and explores their implications for theories extending general relativity.

## Key findings

- Black hole laws are consistent across various theories.
- Thermodynamics laws constrain alternative gravity models.
- Insights into quantum gravity emerge from these laws.

## Abstract

Black holes have often provided profound insights into the nature of gravity and the structure of space-time. The study of the mathematical properties of black objects is a major research theme of contemporary theoretical physics. This review presents a comprehensive survey of the various versions of the first law and second law of black hole mechanics in general relativity and beyond. The emphasis is to understand how these laws can constrain the physics beyond general relativity.