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Holographic Ricci dark energy in Randall-Sundrum braneworld: Avoidance of big rip and steady state future
Feng, Chao-Jun; Zhang, Xin; Zhang, X , Northeastern Univ, Dept Phys, Coll Sci, Shenyang 110004, Peoples R China
2009
发表期刊PHYSICS LETTERS B
ISSN0370-2693
卷号680期号:5页码:399-403
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.
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
关键词Equation-of-state Cosmological Constant Statefinder Diagnosis Model Constraints Quintessence Universe Evolution Bulk Term
学科领域Physics
资助者Natural Science Foundation of China[10705041, 10975032] ; Natural Science Foundation of China[10705041, 10975032] ; Natural Science Foundation of China[10705041, 10975032] ; Natural Science Foundation of China[10705041, 10975032]
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收录类别SCI
资助者Natural Science Foundation of China[10705041, 10975032] ; Natural Science Foundation of China[10705041, 10975032] ; Natural Science Foundation of China[10705041, 10975032] ; Natural Science Foundation of China[10705041, 10975032]
WOS记录号WOS:000271363200002
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被引频次:42[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5226
专题1978-2010年知识产出
通讯作者Zhang, X , Northeastern Univ, Dept Phys, Coll Sci, Shenyang 110004, Peoples R China
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Feng, Chao-Jun,Zhang, Xin,Zhang, X , Northeastern Univ, Dept Phys, Coll Sci, Shenyang 110004, Peoples R China. 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.
APA Feng, Chao-Jun,Zhang, Xin,&Zhang, X , Northeastern Univ, Dept Phys, Coll Sci, Shenyang 110004, Peoples R China.(2009).Holographic Ricci dark energy in Randall-Sundrum braneworld: Avoidance of big rip and steady state future.PHYSICS LETTERS B,680(5),399-403.
MLA Feng, Chao-Jun,et al."Holographic Ricci dark energy in Randall-Sundrum braneworld: Avoidance of big rip and steady state future".PHYSICS LETTERS B 680.5(2009):399-403.
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