Ambiguity of black hole entropy in loop quantum gravity

TL;DR

This paper reevaluates black hole entropy in loop quantum gravity, proposing a new Immirzi parameter and emphasizing the need for a novel approach to reconcile area spectra with quasinormal modes.

Contribution

It introduces a new possible choice of the Immirzi parameter and highlights the necessity of a new idea to connect LQG area spectrum with quasinormal mode analysis.

Findings

Proposes a new Immirzi parameter value.

Argues that existing proposals are ambiguous.

Suggests a fundamental need for new ideas in the theory.

Abstract

We reexmine some proposals of black hole entropy in loop quantum gravity (LQG) and consider a new possible choice of the Immirzi parameter which has not been pointed out so far. We also discuss that a new idea is inevitable if we regard the relation between the area spectrum in LQG and that in the quasinormal mode analysis seriously.