Diagnosing Lambda HDE model with statefinder hierarchy and fractional growth parameter
文献类型：期刊论文
| 作者 | Zhou, LJ; Wang, S; Wang, S (reprint author), Sun Yat Sen Univ, Sch Astron & Space Sci, Guangzhou 510275, Guangdong, Peoples R China. |
| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2016 |
| 卷号 | 59期号:7页码:670411 |
| 关键词 | Dark Energy Cosmology Cosmological Constant |
| DOI | http://dx.doi.org/10.1007/s11433-016-0038-9 |
| 英文摘要 | 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. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/21606]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Wang, S (reprint author), Sun Yat Sen Univ, Sch Astron & Space Sci, Guangzhou 510275, Guangdong, Peoples R China. |
| 推荐引用方式 GB/T 7714 | 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. |
入库方式： OAI收割
来源：理论物理研究所
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