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题名: Holographic dark energy characterized by the total comoving horizon and insights into a cosmological constant and the coincidence problem
作者: Huang, ZP ;  Wu, YL
刊名: PHYSICAL REVIEW D
出版日期: 2012
卷号: 85, 期号:10, 页码:103007
关键词: KAROLYHAZY UNCERTAINTY RELATION ;  SPACE-TIME ;  INFLATIONARY UNIVERSE ;  WMAP OBSERVATIONS ;  SUPERNOVAE ;  MODEL ;  FLATNESS ;  LIGHT
学科分类: Physics
通讯作者: Huang, ZP (reprint author), Natl Univ Def Technol, Dept Phys, Changsha 410073, Hunan, Peoples R China.
部门归属: [Huang, Zhuo-Peng] Natl Univ Def Technol, Dept Phys, Changsha 410073, Hunan, Peoples R China; [Huang, Zhuo-Peng; Wu, Yue-Liang] Chinese Acad Sci, SKLTP, KITPC, Inst Theoret Phys, Beijing 100190, Peoples R China
英文摘要: The observed acceleration of the present Universe is shown to be well explained by the holographic dark energy characterized by the total comoving horizon of the Universe (eta HDE). It is of interest to notice that the very large primordial part of the comoving horizon generated by the inflation of the early Universe makes the eta HDE behave like a cosmological constant. As a consequence, both the fine-tuning problem and the coincidence problem can reasonably be understood with the inflationary universe and holo-graphical principle. We present a systematic analysis and obtain a consistent cosmological constraint on the eta HDE model based on the recent cosmological observations. It is found that the eta HDE model gives the best-fit result Omega(m0) = 0: 270 (Omega(de0) = 0: 730) and the minimal chi(2)(min) = 542: 915 which is compatible with chi(2)(ACDM) = 542: 919 for the ACDM model.
资助者: National Basic Research Program of China (973 Program) [2010CB833000]; National Nature Science Foundation of China (NSFC) [10975170, 10975184, 10947016]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000304401400002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15097
Appears in Collections:理论物理所2012年知识产出_期刊论文

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Recommended Citation:
Huang, ZP,Wu, YL. Holographic dark energy characterized by the total comoving horizon and insights into a cosmological constant and the coincidence problem[J]. PHYSICAL REVIEW D,2012,85(10):103007.
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