Couplings between holographic dark energy and dark matter

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	Couplings between holographic dark energy and dark matter
	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
刊名	EUROPEAN PHYSICAL JOURNAL C
	2010
卷号	69 期号:40972 页码:509-519
关键词	Digital Sky Survey Probe Wmap Observations Hubble-space-telescope Black-holes Cosmological Constant Entropy Bounds Model Quintessence Constraints Thermodynamics
ISSN号	1434-6044
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.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000283361800014
公开日期	2012-08-02
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/5036]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Ma, YZ , Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, POB 2735, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	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.