Diagnosing holographic type dark energy models with the Statefinder hierarchy, composite null diagnostic and w-w ' pair

doi:10.1007/s11433-017-9111-4

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	Diagnosing holographic type dark energy models with the Statefinder hierarchy, composite null diagnostic and w-w ' pair
	Zhao, Z 3; Wang, S 1
刊名	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2018
卷号	61 期号:3 页码:39811
关键词	PROBE WMAP OBSERVATIONS EQUATION-OF-STATE COSMOLOGICAL CONSTRAINTS ACCELERATING UNIVERSE COSMIC COINCIDENCE QUINTESSENCE TRANSITION SUPERNOVAE INFLATION COMPONENT
ISSN号	1674-7348
DOI	10.1007/s11433-017-9111-4
英文摘要	The main purpose of this work is to distinguish various holographic type dark energy (DE) models, including the AHDE, HDE, NADE, and RDE model, by using various diagnostic tools. The first diagnostic tool is the Statefinder hierarchy, in which the evolution of Statefinder hierarchy parmeter S-3((1))(z) and S-4((1))(z) are studied. The second is composite null diagnostic (CND), in which the trajectories of {S-3((1)),epsilon} and {S-4((1))epsilon} are investigated, where epsilon is the fractional growth parameter. The last is w-w' analysis, where w is the equation of state for DE and the prime denotes derivative with respect to lna. In the analysis we consider two cases: varying current fractional DE density Omega(de0) and varying DE model parameter C. We find that: (1) both the Statefinder hierarchy and the CND have qualitative impact on AHDE, but only have quantitative impact on HDE. (2) S-4((1)) can lead to larger differences than S-3((1)), while the CND pair has a stronger ability to distinguish different models than the Statefinder hierarchy. (3) For the case of varying C, the {w, w'} pair has qualitative impact on AHDE; for the case of varying Omega(de0) the {w, w'} pair only has quantitative impact; these results are different from the cases of HDE, RDE, and NADE, in which the {w, w'} pair only has quantitative impact on these models. In conclusion, compared with HDE, RDE, and NADE, the AHDE model can be easily distinguished by using these diagnostic tools.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/22952]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 2.Sun Yat Sen Univ, Sch Astron & Space Sci, Guangzhou 510275, Guangdong, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Z,Wang, S. Diagnosing holographic type dark energy models with the Statefinder hierarchy, composite null diagnostic and w-w ' pair[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2018,61(3):39811.
APA	Zhao, Z,&Wang, S.(2018).Diagnosing holographic type dark energy models with the Statefinder hierarchy, composite null diagnostic and w-w ' pair.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,61(3),39811.
MLA	Zhao, Z,et al."Diagnosing holographic type dark energy models with the Statefinder hierarchy, composite null diagnostic and w-w ' pair".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 61.3(2018):39811.