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题名: Super-acceleration on the brane through energy flow from the bulk
作者: 蔡荣根 ;  Gong, YG ;  Wang, B
刊名: JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
出版日期: 2006
期号: 3, 页码:-
关键词: HOLOGRAPHIC DARK ENERGY ;  COSMOLOGICAL CONSTANT ;  MODIFIED GRAVITY ;  INVERSE POWERS ;  1/R GRAVITY ;  MODEL ;  CONSTRAINTS ;  UNIVERSE ;  SCALAR ;  CURVATURE
学科分类: Physics
通讯作者: Cai, RG , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China
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
英文摘要: 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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000236468800013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/6034
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:
Cai, RG,Gong, YG,Wang, B. Super-acceleration on the brane through energy flow from the bulk[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2006(3):-.
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