Couplings between holographic dark energy and dark matter

	Couplings between holographic dark energy and dark matter
	Ma, Yin-Zhe 1,2; Gong, Yan3,4 ; Chen, Xuelei1,3
刊名	EUROPEAN PHYSICAL JOURNAL C
	2010-10-01
卷号	69 期号:3-4 页码:509-519
英文摘要	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.
收录类别	SCI
语种	英语
WOS记录号	WOS:000283361800014
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/8077]
专题	国家天文台_星系宇宙学研究部
作者单位	1.Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, Beijing 100080, Peoples R China 2.Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England 3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 4.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Ma, Yin-Zhe,Gong, Yan,Chen, Xuelei. Couplings between holographic dark energy and dark matter[J]. EUROPEAN PHYSICAL JOURNAL C,2010,69(3-4):509-519.
APA	Ma, Yin-Zhe,Gong, Yan,&Chen, Xuelei.(2010).Couplings between holographic dark energy and dark matter.EUROPEAN PHYSICAL JOURNAL C,69(3-4),509-519.
MLA	Ma, Yin-Zhe,et al."Couplings between holographic dark energy and dark matter".EUROPEAN PHYSICAL JOURNAL C 69.3-4(2010):509-519.