Area spectrum of horizon and black hole entropy

被引：2

作者：

Tanaka, Tomo ^{[1
]}

Tamaki, Takashi ^{[2
]}

机构：

[1] Waseda Univ, Dept Phys, Okubo 3-4-1, Tokyo 1698555, Japan

[2] Nihon Univ, Coll Engn, Dept Phys, Koriyama, Fukushima 9638642, Japan

来源：

EUROPEAN PHYSICAL JOURNAL C | 2013年 / 73卷 / 02期

关键词：

QUANTUM GEOMETRY;

D O I：

10.1140/epjc/s10052-013-2314-0

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We calculate the number of degrees of freedom in spin network states related to the general area spectrum in loop quantum gravity based on the ABCK framework. We find that a black hole entropy (the logarithm of the degrees of freedom) is proportional to its area but it provides us with a different value of the Barbero-Immirzi parameter (gamma = 0.9284 ... or 0.7274 ... ). It means that one should be careful in choosing the area spectrum when we describe a horizon area in full quantum gravity.

引用

页码：1 / 9

页数：9

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