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Ma, Yin-Zhe; Gong, Yan; Chen, Xuelei; Ma, YZ , Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, POB 2735, Beijing 100080, Peoples R China
Couplings between holographic dark energy and dark matter
发表期刊EUROPEAN PHYSICAL JOURNAL C
关键词Digital Sky Survey Probe Wmap Observations Hubble-space-telescope Black-holes Cosmological Constant Entropy Bounds Model Quintessence Constraints Thermodynamics
摘要We consider the interaction between dark matter and dark energy in the framework of holographic dark energy, and propose a natural and physically plausible form of interaction, in which the interacting term is proportional to the product of the powers of the dark matter and dark energy densities. We investigate the cosmic evolution in such models. The impact of the coupling on the dark matter and dark energy components may be asymmetric. While the dark energy decouples from the dark matter at late time, just as other components of the cosmic fluid become decoupled as the universe expands, interestingly, the dark matter may actually become coupled to the dark energy at late time. We shall call such a phenomenon incoupling. We use the latest type Ia supernovae data from the SCP team, baryon acoustics oscillation data from SDSS and 2dF surveys, and the position of the first peak of the CMB angular power spectrum to constrain the model. We find that the interaction term which is proportional to the first power product of the dark energy and dark matter densities gives an excellent fit to the current data.
2010
ISSN1434-6044
卷号69期号:40972页码:509-519
学科领域Physics
收录类别SCI
项目资助者Chinese Academy of Sciences[KJCX3-SYW-N2]; Ministry of Science and Technology National Basic Science program[2007CB815401]; National Science Foundation of China[10525314]; Key project[10503010] ; Chinese Academy of Sciences[KJCX3-SYW-N2]; Ministry of Science and Technology National Basic Science program[2007CB815401]; National Science Foundation of China[10525314]; Key project[10503010] ; Chinese Academy of Sciences[KJCX3-SYW-N2]; Ministry of Science and Technology National Basic Science program[2007CB815401]; National Science Foundation of China[10525314]; Key project[10503010] ; Chinese Academy of Sciences[KJCX3-SYW-N2]; Ministry of Science and Technology National Basic Science program[2007CB815401]; National Science Foundation of China[10525314]; Key project[10503010]
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被引频次:18[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/311006/5036
专题理论物理所科研产出_SCI论文
通讯作者Ma, YZ , Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, POB 2735, Beijing 100080, Peoples R China
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Ma, Yin-Zhe,Gong, Yan,Chen, Xuelei,et al. Couplings between holographic dark energy and dark matter[J]. EUROPEAN PHYSICAL JOURNAL C,2010,69(40972):509-519.
APA Ma, Yin-Zhe,Gong, Yan,Chen, Xuelei,&Ma, YZ , Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, POB 2735, Beijing 100080, Peoples R China.(2010).Couplings between holographic dark energy and dark matter.EUROPEAN PHYSICAL JOURNAL C,69(40972),509-519.
MLA Ma, Yin-Zhe,et al."Couplings between holographic dark energy and dark matter".EUROPEAN PHYSICAL JOURNAL C 69.40972(2010):509-519.
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