GENERALIZED HOLOGRAPHIC DARK ENERGY AND ITS OBSERVATIONAL CONSTRAINTS
文献类型：期刊论文
| 作者 | Li, M
|
| 刊名 | MODERN PHYSICS LETTERS A
 |
| 出版日期 | 2012 |
| 卷号 | 27期号:20页码:1250115 |
| 关键词 | HUBBLE-SPACE-TELESCOPE YANG-MILLS CONDENSATE BRANS-DICKE THEORY BVRI LIGHT CURVES COSMOLOGICAL CONSTANT IA SUPERNOVAE BLACK-HOLES ACCELERATING UNIVERSE STATEFINDER DIAGNOSIS ENTROPY BOUNDS |
| ISSN号 | 0217-7323 |
| 通讯作者 | Li, XD (reprint author), Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China. |
| 英文摘要 | In the original holographic dark energy (HDE) model, the dark energy density is proposed to be rho(de) = 3c(2)M(P)(2)L(-2), with c a dimensionless constant characterizing the properties of the HDE. In this work, we propose the generalized holographic dark energy (GHDE) model by considering the parameter c as a redshift-dependent function c(z). We derive all the physical quantities of the GHDE model analytically, and fit the c(z) by trying four kinds of parametrizations. The cosmological constraints of the c(z) are obtained from the joint analysis of the present SNLS3+BAO+CMB+H-0 data. We find that, compared with the original HDE model, the GHDE models can provide a better fit to the data. For example, the GHDE model with JBP-type c(z) can reduce the chi(2)(min) of the HDE model by 2.16. We also find that, unlike the original HDE model with a phantom-like behavior in the future, the GHDE models can present many more different possibilities, i.e. it allows the GHDE in the future to be either quintessence-like, cosmological constant-like, or phantom-like, depending on the forms of c(z). |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | NSFC [10535060, 10975172, 10821504]; 973 program of the Ministry of Science and Technology of China [2007CB815401] |
| 原文出处 | http://dx.doi.org/10.1142/S0217732312501155 |
| 语种 | 英语 |
| WOS记录号 | WOS:000305907000006 |
| 公开日期 | 2014-04-25 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15076]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Li, M. GENERALIZED HOLOGRAPHIC DARK ENERGY AND ITS OBSERVATIONAL CONSTRAINTS[J]. MODERN PHYSICS LETTERS A,2012,27(20):1250115. |
| APA | Li, M.(2012).GENERALIZED HOLOGRAPHIC DARK ENERGY AND ITS OBSERVATIONAL CONSTRAINTS.MODERN PHYSICS LETTERS A,27(20),1250115. |
| MLA | Li, M."GENERALIZED HOLOGRAPHIC DARK ENERGY AND ITS OBSERVATIONAL CONSTRAINTS".MODERN PHYSICS LETTERS A 27.20(2012):1250115. |
入库方式： OAI收割
来源：理论物理研究所
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