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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.
1996
发表期刊MODERN PHYSICS LETTERS A
ISSN0217-7323
卷号11期号:25页码:2027-2036
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.
部门归属ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA
关键词Loop Quantum Corrections Black-hole Entropy Particle Creation Thermodynamics Horizons Gravity
学科领域Physics
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收录类别SCI
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12596
专题理论物理所1978-2010年知识产出
通讯作者Cai, RG , CCAST,WORLD LAB,POB 2735,BEIJING 100080,PEOPLES R CHINA.
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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.
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