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题名: Couplings between holographic dark energy and dark matter
作者: Ma, Yin-Zhe ;  Gong, Yan ;  Chen, Xuelei
刊名: EUROPEAN PHYSICAL JOURNAL C
出版日期: 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
学科分类: Physics
通讯作者: Ma, YZ , Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, POB 2735, Beijing 100080, Peoples R China
部门归属: [Ma, YZ; Chen, XL] Chinese Acad Sci, Inst Theoret Phys, Kavli Inst Theoret Phys China, Beijing 100080, Peoples R China; [Ma, YZ] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England; [Gong, Y; Chen, XL] Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China; [Gong, Y] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
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.
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]
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000283361800014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5036
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Ma, Yin-Zhe,Gong, Yan,Chen, Xuelei. Couplings between holographic dark energy and dark matter[J]. EUROPEAN PHYSICAL JOURNAL C,2010,69(40972):509-519.
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