Black Hole Entropy in 1+1 Dimensions from a Quasi-Chern Simons term in a Gravitational Background

TL;DR

This paper introduces a quasi-topological term in 1+1 dimensional gravity and calculates black hole entropy, attributing it to a non-null stress-energy tensor, providing a novel approach to black hole thermodynamics in lower dimensions.

Contribution

It proposes a new quasi-topological term in 1+1D gravity and demonstrates its role in black hole entropy calculation, linking entropy to stress-energy tensor properties.

Findings

Black hole entropy can be derived from a quasi-topological term.

The stress-energy tensor is a key source of entropy in this framework.

The approach offers insights into lower-dimensional black hole thermodynamics.

Abstract

We introduce a 'quasi-topological` term [1] in D=1+1 dimensions and the entropy for black holes is calculated [2]. The source of entropy in this case is justified by a non-null stress-energy tensor.