Black Hole Entropy in Loop Quantum Gravity
Abstract
We give an account of the state of the art about black hole entropy in Loop Quantum Gravity. This chapter contains a historical summary and explains how black hole entropy is described by relying on the concept of isolated horizon, with an emphasis on different representations of its associated symmetry group. It continues with a review of the combinatorial methods necessary to understand the behavior of the entropy as a function of the area and concludes with a discussion of the nature of the quantum horizon degrees of freedom that account for the black hole entropy and the related issue of the fixing of the Immirzi parameter.
Cite
@article{arxiv.2212.13469,
title = {Black Hole Entropy in Loop Quantum Gravity},
author = {J. Fernando Barbero G. and Daniele Pranzetti},
journal= {arXiv preprint arXiv:2212.13469},
year = {2022}
}
Comments
28 pages, to appear in the "Handbook of Quantum Gravity", Cosimo Bambi, Leonardo Modesto, Ilya Shapiro (editors), Springer (2023)