A note on renormalization and black hole entropy in loop quantum gravity

被引：40
|
作者：
Jacobson, Ted [1 ]
机构：
[1] Univ Maryland, Dept Phys, College Pk, MD 20742 USA
来源：
CLASSICAL AND QUANTUM GRAVITY | 2007年 / 24卷 / 18期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1088/0264-9381/24/18/N02
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Microscopic state counting for a black hole in loop quantum gravity yields a result proportional to the 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.
引用
收藏
页码：4875 / 4879
页数：5
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