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题名: Crossing w=-1 in Gauss-Bonnet brane world with induced gravity
作者: 蔡荣根 ;  Zhang, HS ;  Wang, AZ
刊名: COMMUNICATIONS IN THEORETICAL PHYSICS
出版日期: 2005
卷号: 44, 期号:5, 页码:948-954
关键词: PROBE WMAP OBSERVATIONS ;  DARK ENERGY ;  COSMOLOGICAL CONSTANT ;  SUPERNOVAE ;  MODEL
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; Baylor Univ, CASPER, Dept Phys, Waco, TX 76706 USA
英文摘要: Recent type Ia supernovas data seemingly favor a dark energy model whose equation of state w(z) crosses -1 very recently, which is a much more amazing problem than the acceleration of the universe. In this paper we show that it is possible to realize such a crossing without introducing any phantom component in a Gauss-Bonnet brane world with induced gravity, where a four-dimensional curvature scalar on the brane and a five-dimensional Gauss-Bonnet term in the bulk are present. In this realization, the Gauss-Bonnet term and the mass parameter in the bulk play a crucial role.
收录类别: SCI
WOS记录号: WOS:000233657100038
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13719
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,Zhang, HS,Wang, AZ. Crossing w=-1 in Gauss-Bonnet brane world with induced gravity[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2005,44(5):948-954.
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