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题名: Cosmology with interaction between phantom dark energy and dark matter and the coincidence problem
作者: 蔡荣根 ;  Wang, AZ
刊名: JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
出版日期: 2005
期号: 3, 页码:-
关键词: HIGH-REDSHIFT SUPERNOVAE ;  HUBBLE-SPACE-TELESCOPE ;  SCALAR-TENSOR THEORY ;  DIGITAL SKY SURVEY ;  ACCELERATING UNIVERSE ;  WMAP OBSERVATIONS ;  DATA RELEASE ;  K-INFLATION ;  CONSTANT ;  DENSITY
学科分类: Physics
通讯作者: Cai, RG , Baylor Univ, Dept Phys, CASPER, Waco, TX 76798 USA.
部门归属: Baylor Univ, Dept Phys, CASPER, Waco, TX 76798 USA; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: We study a cosmological model in which phantom dark energy is coupled to dark matter by phenomenologically introducing a coupled term to the equations of motion of dark energy and dark matter. This term is parameterized by a dimensionless coupling function delta, the Hubble parameter and the energy density of dark matter, and it describes an energy flow between the dark energy and dark matter. We discuss two cases: one is the case where the equation of state omega(e) of the dark energy is a constant; the other is that where the dimensionless coupling function d is a constant. We investigate the effect of the interaction on the evolution of the universe, the total lifetime of the universe and the ratio of the period when the universe is in the coincidence state to its total lifetime. It turns out that the interaction will produce significant deviation from the case without the interaction.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000228112400010
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13863
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,Wang, AZ. Cosmology with interaction between phantom dark energy and dark matter and the coincidence problem[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2005(3):-.
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