Nonvanishing entropy of extremal charged black holes

被引：53
|
作者：
Lee, HJ
Kim, SW
Kim, WT
机构：
[1] EWHA WOMANS UNIV,DEPT SCI EDUC,SEOUL 120750,SOUTH KOREA
[2] SOGANG UNIV,DEPT PHYS,SEOUL 121742,SOUTH KOREA
[3] SOGANG UNIV,BASIC SCI RES INST,SEOUL 121742,SOUTH KOREA
[4] EWHA WOMANS UNIV,BASIC SCI RES INST,SEOUL 120750,SOUTH KOREA
来源：
PHYSICAL REVIEW D | 1996年 / 54卷 / 10期
关键词：
D O I：
10.1103/PhysRevD.54.6559
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We calculate the entropy of a scalar field in terms of the brick-wall method by faithfully following the definition of the extremal black hole with zero Hawking temperature. Without recourse to the Euclidean formalism, which gives the arbitrary nonvanishing temperature, we obtain the nonvanishing and divergent entropy in the two-dimensional dilaton-Maxwell theory and the four-dimensional Reissner-Nordstrom solution even for the vanishing Hawking temperature in view of the microcanonical ensemble.
引用
收藏
页码：6559 / 6562
页数：4
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