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题名: Holographic Ricci dark energy in Randall-Sundrum braneworld: Avoidance of big rip and steady state future
作者: Feng, Chao-Jun ;  Zhang, Xin
刊名: PHYSICS LETTERS B
出版日期: 2009
卷号: 680, 期号:5, 页码:399-403
关键词: EQUATION-OF-STATE ;  COSMOLOGICAL CONSTANT ;  STATEFINDER DIAGNOSIS ;  MODEL ;  CONSTRAINTS ;  QUINTESSENCE ;  UNIVERSE ;  EVOLUTION ;  BULK ;  TERM
学科分类: Physics
通讯作者: Zhang, X , Northeastern Univ, Dept Phys, Coll Sci, Shenyang 110004, Peoples R China
部门归属: [Zhang, X] Northeastern Univ, Dept Phys, Coll Sci, Shenyang 110004, Peoples R China; [Feng, CJ] Shanghai Normal Univ, SUCA, Shanghai 200234, Peoples R China; [Feng, CJ] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China; [Zhang, X] Chinese Acad Sci, KITPC, Beijing 100190, Peoples R China
英文摘要: In the holographic Ricci dark energy (RDE) model, the parameter alpha plays an important role in determining the evolutionary behavior of the dark energy. When alpha < 1/2, the RDE will exhibit a quintom feature, i.e., the equation of state of dark energy will evolve across the cosmological constant boundary w = -1. Observations show that the parameter alpha is indeed smaller than 1/2, so the late-time evolution of RDE will be really like a phantom energy. Therefore, it seems that the big rip is inevitable in this model. On the other hand, the big rip is actually inconsistent with the theoretical framework of the holographic model of dark energy. To avoid the big rip, we appeal to the extra dimension physics. In this Letter, we investigate the cosmological evolution of the RDE in the braneworld cosmology. It is of interest to find that for the far future evolution Of RDE in a Randall-Sundrum braneworld, there is an attractor solution where the steady state (de Sitter) finale occurs, in stead of the big rip. (C) 2009 Elsevier B.V. All rights reserved.
资助者: Natural Science Foundation of China[10705041, 10975032]
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000271363200002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5226
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Feng, Chao-Jun,Zhang, Xin. Holographic Ricci dark energy in Randall-Sundrum braneworld: Avoidance of big rip and steady state future[J]. PHYSICS LETTERS B,2009,680(5):399-403.
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