Entropy of scalar fields in Reissner-Nordstrom-(anti-)de Sitter spacetimes

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	Entropy of scalar fields in Reissner-Nordstrom-(anti-)de Sitter spacetimes
	Cai, RG; Zhang, YZ; Cai, RG , CCAST,WORLD LAB,POB 2735,BEIJING 100080,PEOPLES R CHINA.
刊名	MODERN PHYSICS LETTERS A
	1996
卷号	11 期号:25 页码:2027-2036
关键词	Loop Quantum Corrections Black-hole Entropy Particle Creation Thermodynamics Horizons Gravity
ISSN号	0217-7323
英文摘要	The entropy of a free scalar field is calculated in the Reissner-Nordstrom-(anti-)de Sitter spacetimes. Due to the presence of the cosmological horizon in the Reissner-Nordstrom-de Sitter spacetime, we introduce a cutoff at the cosmological horizon, besides the cutoff at the horizon of black holes in the brick wall model. The entropy is found to be the sum of two terms, which are proportional to the area of the cosmological horizon and of black hole horizon, respectively. In the Reissner-Nordstrom-anti-de Sitter spacetime the contribution of the anti-de Sitter background to the entropy of scalar fields vanishes when an infinite volume is taken. The entropy of scalar fields is also evaluated in some special backgrounds described by solutions of Einstein-Maxwell equations with a cosmological constant, such as the cold black holes, lukewarm black holes, ultracold solutions, a naked singularity in de Sitter space, and the de Sitter space. The physical meaning of some results is briefly discussed.
学科主题	Physics
URL标识	查看原文
公开日期	2012-08-29
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/12596]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Cai, RG , CCAST,WORLD LAB,POB 2735,BEIJING 100080,PEOPLES R CHINA.
推荐引用方式 GB/T 7714	Cai, RG,Zhang, YZ,Cai, RG , CCAST,WORLD LAB,POB 2735,BEIJING 100080,PEOPLES R CHINA.. Entropy of scalar fields in Reissner-Nordstrom-(anti-)de Sitter spacetimes[J]. MODERN PHYSICS LETTERS A,1996,11(25):2027-2036.
APA	Cai, RG,Zhang, YZ,&Cai, RG , CCAST,WORLD LAB,POB 2735,BEIJING 100080,PEOPLES R CHINA..(1996).Entropy of scalar fields in Reissner-Nordstrom-(anti-)de Sitter spacetimes.MODERN PHYSICS LETTERS A,11(25),2027-2036.
MLA	Cai, RG,et al."Entropy of scalar fields in Reissner-Nordstrom-(anti-)de Sitter spacetimes".MODERN PHYSICS LETTERS A 11.25(1996):2027-2036.