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Thermodynamical properties of apparent horizon in warped DGP braneworld
文献类型：期刊论文
| 作者 | Sheykhi, Ahmad; Bin Wang; Cai, Rong-Gen ; Wang, B , Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
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| 刊名 | NUCLEAR PHYSICS B
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| 出版日期 | 2007 |
| 卷号 | 779期号:40910页码:1-12 |
| 关键词 | Gravitational Constant Cosmological Constant Friedmann Equation Cardy Formula 1st Law Gravity Universes Breaking Bulk |
| ISSN号 | 0550-3213 |
| 英文摘要 | In this paper we first obtain Friedmann equations for the (n - I)-dimensional brane embedded in the (n +1)-dimensional bulk, with intrinsic curvature term of the brane included in the action (DGP model). Then, we show that one can always rewrite the Friedmann equations in the form of the first law of thermodynamics, dE = T dS + W d V, at apparent horizon on the brane, regardless of whether there is the intrinsic curvature term on the brane or a cosmological constant in the bulk. Using the first law, we extract the entropy expression of the apparent horizon on the brane. We also show that in the case without the intrinsic curvature term, the entropy expressions are the same by using the apparent horizon on the brane and by using the bulk geometry. When the intrinsic curvature appears, the entropy of apparent horizon on the brane has two parts, one pail follows the n-climensional area formula on the brane, and the other part is the same as the entropy in the case without the intrinsic curvature term. As an interesting result, in the warped DGP model, the entropy expression in the bulk and on the brane are not the same. This is reasonable, since in this model gravity on the brane has two parts, one induced from the (n + I)-dimensional bulk gravity and the other due to the intrinsic curvature term on the brane. (c) 2007 Elsevier B.V. All rights reserved. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000248995600001 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5663]  |
| 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 | Wang, B , Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sheykhi, Ahmad,Bin Wang,Cai, Rong-Gen,et al. Thermodynamical properties of apparent horizon in warped DGP braneworld[J]. NUCLEAR PHYSICS B,2007,779(40910):1-12. |
| APA | Sheykhi, Ahmad,Bin Wang,Cai, Rong-Gen,&Wang, B , Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China.(2007).Thermodynamical properties of apparent horizon in warped DGP braneworld.NUCLEAR PHYSICS B,779(40910),1-12. |
| MLA | Sheykhi, Ahmad,et al."Thermodynamical properties of apparent horizon in warped DGP braneworld".NUCLEAR PHYSICS B 779.40910(2007):1-12. |
入库方式： OAI收割
来源：理论物理研究所
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