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Super-acceleration on the brane through energy flow from the bulk
Cai, RG; Gong, YG; Wang, B; Cai, RG , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China
2006
发表期刊JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
ISSN1475-7516
期号3页码:-
摘要We consider a brane cosmological model with energy exchange between the brane and the bulk. Parametrizing the energy exchange term using the scale factor and Hubble parameter, we are able to exactly solve the modified Friedmann equation on the brane. In this model, the equation of state for the effective dark energy has a transition behaviour, changing from w(de)(eff) > - 1 to we(de)(eff) < - 1, while the equation of state for the dark energy on the brane has w > - 1. Fitting data from type Ia supernovae, the Sloan Digital Sky Survey and the Wilkinson Microwave Anisotropy Probe, our universe is predicted now to be in a state of super-acceleration with w(de0)(eff) = -1.21.
部门归属Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Chongqing Univ Posts & Telecommun, Coll Elect Engn, Chongqing 400065, Peoples R China; Baylor Univ, Dept Phys, CASPER, Waco, TX 76798 USA; Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
关键词Holographic Dark Energy Cosmological Constant Modified Gravity Inverse Powers 1/r Gravity Model Constraints Universe Scalar Curvature
学科领域Physics
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收录类别SCI
WOS记录号WOS:000236468800013
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被引频次:37[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/311006/6034
专题理论物理所SCI论文
通讯作者Cai, RG , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China
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Cai, RG,Gong, YG,Wang, B,et al. Super-acceleration on the brane through energy flow from the bulk[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2006(3):-.
APA Cai, RG,Gong, YG,Wang, B,&Cai, RG , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.(2006).Super-acceleration on the brane through energy flow from the bulk.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(3),-.
MLA Cai, RG,et al."Super-acceleration on the brane through energy flow from the bulk".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .3(2006):-.
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