On the dark sector interactions

ITP OpenIR > 理论物理所1978-2010年知识产出

	On the dark sector interactions
	Cai, Rong-Gen; Su, Qiping; Cai, RG , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China
	2010
发表期刊	PHYSICAL REVIEW D
ISSN	1550-7998
卷号	81 期号:10 页码:-
摘要	It is possible that there exist some interactions between dark energy (DE) and dark matter (DM), and a suitable interaction can alleviate the coincidence problem. Several phenomenological interacting forms are proposed and are fitted with observations in the literature. In this paper we investigate the possible interaction in a way independent of specific interacting forms by the use of observational data (supernovae, BAO, CMB, and Hubble parameter). We divide the whole range of redshift into a few bins and set the interacting term delta(z) to be a constant in each redshift bin. We consider four parametrizations of the equation of state w(de) for DE and find that delta(z) is likely to cross the noninteracting (delta = 0) and have an oscillation form. It suggests that to study the interaction between DE and DM, more general phenomenological forms of the interacting term should be considered.
部门归属	[Cai, RG; Su, QP] Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
关键词	Energy Quintessence Coincidence Constraints Model
学科领域	Physics
资助者	National Natural Science Foundation of China[10535060, 10821504, 10975168]; National Basic Research Program of China[2010CB833004] ; National Natural Science Foundation of China[10535060, 10821504, 10975168]; National Basic Research Program of China[2010CB833004] ; National Natural Science Foundation of China[10535060, 10821504, 10975168]; National Basic Research Program of China[2010CB833004] ; National Natural Science Foundation of China[10535060, 10821504, 10975168]; National Basic Research Program of China[2010CB833004]
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收录类别	SCI
资助者	National Natural Science Foundation of China[10535060, 10821504, 10975168]; National Basic Research Program of China[2010CB833004] ; National Natural Science Foundation of China[10535060, 10821504, 10975168]; National Basic Research Program of China[2010CB833004] ; National Natural Science Foundation of China[10535060, 10821504, 10975168]; National Basic Research Program of China[2010CB833004] ; National Natural Science Foundation of China[10535060, 10821504, 10975168]; National Basic Research Program of China[2010CB833004]
WOS记录号	WOS:000278146700027
引用统计	被引频次：64[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/311006/5106
专题	理论物理所1978-2010年知识产出
通讯作者	Cai, RG , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Cai, Rong-Gen,Su, Qiping,Cai, RG , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China. On the dark sector interactions[J]. PHYSICAL REVIEW D,2010,81(10):-.
APA	Cai, Rong-Gen,Su, Qiping,&Cai, RG , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China.(2010).On the dark sector interactions.PHYSICAL REVIEW D,81(10),-.
MLA	Cai, Rong-Gen,et al."On the dark sector interactions".PHYSICAL REVIEW D 81.10(2010):-.

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