Renormalization and black hole entropy in Loop Quantum Gravity
General Relativity and Quantum Cosmology
2010-10-27 v2 High Energy Physics - Theory
Abstract
Microscopic state counting for a black hole in Loop Quantum Gravity yields a result proportional to horizon area, and inversely proportional to Newton's constant and the Immirzi parameter. It is argued here that before this result can be compared to the Bekenstein-Hawking entropy of a macroscopic black hole, the scale dependence of both Newton's constant and the area must be accounted for. The two entropies could then agree for any value of the Immirzi parameter, if a certain renormalization property holds.
Cite
@article{arxiv.0707.4026,
title = {Renormalization and black hole entropy in Loop Quantum Gravity},
author = {Ted Jacobson},
journal= {arXiv preprint arXiv:0707.4026},
year = {2010}
}
Comments
8 pages; v2: references added, typos corrected, version to appear in CQG