Entropy of the BTZ black hole in 2+1 dimensions

被引：68

作者：

Kim, SW

Kim, WT

Park, YJ

Shin, HJ

机构：

[1] EWHA WOMANS UNIV,BASIC SCI RES INST,SEOUL 120750,SOUTH KOREA

[2] SOGANG UNIV,DEPT PHYS,SEOUL 121742,SOUTH KOREA

[3] SOGANG UNIV,BASIC SCI RES INST,SEOUL 121742,SOUTH KOREA

来源：

PHYSICS LETTERS B | 1997年 / 392卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(96)01572-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We semi-classically calculate the entropy of a scalar field in the background of the BTZ black hole, and derive the perimeter law of the entropy. The proper length from the horizon to the ultraviolet cutoff is independent of both the mass and the angular momentum of the black hole. It is shown that the superradiant scattering modes give the sub-leading order contribution to the entropy while the non-superradiant modes give the leading order one, and thus superradiant effect is minor.

引用

页码：311 / 318

页数：8

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