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Cosmology with interaction between phantom dark energy and dark matter and the coincidence problem
Cai, RG; Wang, AZ; Cai, RG , Baylor Univ, Dept Phys, CASPER, Waco, TX 76798 USA.
2005
发表期刊JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
ISSN1475-7516
期号3页码:-
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.
部门归属Baylor Univ, Dept Phys, CASPER, Waco, TX 76798 USA; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
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
学科领域Physics
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收录类别SCI
WOS记录号WOS:000228112400010
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被引频次:212[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/311006/13863
专题理论物理所SCI论文
通讯作者Cai, RG , Baylor Univ, Dept Phys, CASPER, Waco, TX 76798 USA.
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Cai, RG,Wang, AZ,Cai, RG , Baylor Univ, Dept Phys, CASPER, Waco, TX 76798 USA.. Cosmology with interaction between phantom dark energy and dark matter and the coincidence problem[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2005(3):-.
APA Cai, RG,Wang, AZ,&Cai, RG , Baylor Univ, Dept Phys, CASPER, Waco, TX 76798 USA..(2005).Cosmology with interaction between phantom dark energy and dark matter and the coincidence problem.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(3),-.
MLA Cai, RG,et al."Cosmology with interaction between phantom dark energy and dark matter and the coincidence problem".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .3(2005):-.
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