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Diagnosing Lambda HDE model with statefinder hierarchy and fractional growth parameter
Zhou, LJ; Wang, S; Wang, S (reprint author), Sun Yat Sen Univ, Sch Astron & Space Sci, Guangzhou 510275, Guangdong, Peoples R China.
2016
发表期刊SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
卷号59期号:7页码:670411
文章类型Article
摘要Recently, a new dark energy model called Lambda HDE was proposed. In this model, dark energy consists of two parts: cosmological constantand holographic dark energy (HDE). Two key parameters of this model are the fractional density of cosmological constant Omega(Lambda 0), and the dimensionless HDE parameter c. Since these two parameters determine the dynamical properties of DE and the destiny of universe, it is important to study the impacts of different values of Omega(Lambda 0) and c on the Lambda HDE model. In this paper, we apply various DE diagnostic tools to diagnose Lambda HDE models with different values of Omega(Lambda 0) and c; these tools include statefinder hierarchy {S-3((1)), S-4((1))}, fractional growth parameter epsilon, and composite null diagnostic (CND), which is a combination of {S-3((1)), S-4((1))} and epsilon. We find that: (1) adopting different values of Omega(Lambda 0) only has quantitative impacts on the evolution of the Lambda HDE model, while adopting different c has qualitative impacts; (2) compared with S-3((1)), S-4((1)) can give larger differences among the cosmic evolutions of the Lambda HDE model associated with different Omega(Lambda 0) or different c; (3) compared with the case of using a single diagnostic, adopting a CND pair has much stronger ability to diagnose the Lambda HDE model.
关键词Dark Energy Cosmology Cosmological Constant
学科领域Physics
资助者National Natural Science Foundation of China [11405024] ; National Natural Science Foundation of China [11405024] ; National Natural Science Foundation of China [11405024] ; National Natural Science Foundation of China [11405024] ; National Natural Science Foundation of China [11405024] ; National Natural Science Foundation of China [11405024] ; National Natural Science Foundation of China [11405024] ; National Natural Science Foundation of China [11405024]
DOIhttp://dx.doi.org/10.1007/s11433-016-0038-9
关键词[WOS]HOLOGRAPHIC DARK ENERGY ; COSMOLOGICAL CONSTRAINTS ; ACCELERATING UNIVERSE ; TRANSITION ; SUPERNOVAE ; INFLATION ; EQUATION ; STATE ; BETA
收录类别SCI
语种英语
资助者National Natural Science Foundation of China [11405024] ; National Natural Science Foundation of China [11405024] ; National Natural Science Foundation of China [11405024] ; National Natural Science Foundation of China [11405024] ; National Natural Science Foundation of China [11405024] ; National Natural Science Foundation of China [11405024] ; National Natural Science Foundation of China [11405024] ; National Natural Science Foundation of China [11405024]
WOS类目Physics, Multidisciplinary
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/21606
专题理论物理所SCI论文
通讯作者Wang, S (reprint author), Sun Yat Sen Univ, Sch Astron & Space Sci, Guangzhou 510275, Guangdong, Peoples R China.
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Zhou, LJ,Wang, S,Wang, S . Diagnosing Lambda HDE model with statefinder hierarchy and fractional growth parameter[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2016,59(7):670411.
APA Zhou, LJ,Wang, S,&Wang, S .(2016).Diagnosing Lambda HDE model with statefinder hierarchy and fractional growth parameter.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,59(7),670411.
MLA Zhou, LJ,et al."Diagnosing Lambda HDE model with statefinder hierarchy and fractional growth parameter".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 59.7(2016):670411.
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