Statefinder parameters for coupled quintessence scenario in a power law case
文献类型：期刊论文
| 作者 | Zhang X(张鑫); Zhang, X |
| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
 |
| 出版日期 | 2005 |
| 卷号 | 44期号:3页码:573-576 |
| 关键词 | coupled quintessence scenario power-law case attractor solution statefinder diagnostic |
| 通讯作者 | Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 英文摘要 | We investigate a coupled quintessence scenario, which can provide a natural solution to the cosmic coincidence problem. We assume that the mass of dark matter particles depends on a power law function of the scalar held associated to dark energy and meanwhile the scalar field evolves in a power law potential. Since the dynamics of this system is dominated by an attractor solution, the mass of dark matter particles is forced to change with time as to ensure that the ratio between the energy densities of dark matter and dark energy becomes a constant at late times, and one thus solves the cosmic coincidence problem naturally. We then apply a statefinder diagnostic to this coupled quintessence scenario. It is shown that the evolving trajectory of this scenario in the s-r diagram is quite different from those of other dark energy models. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000232093900037 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/237998]  |
| 专题 | 高能物理研究所_理论物理室 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhang X,Zhang, X. Statefinder parameters for coupled quintessence scenario in a power law case[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2005,44(3):573-576. |
| APA | 张鑫,&Zhang, X.(2005).Statefinder parameters for coupled quintessence scenario in a power law case.COMMUNICATIONS IN THEORETICAL PHYSICS,44(3),573-576. |
| MLA | 张鑫,et al."Statefinder parameters for coupled quintessence scenario in a power law case".COMMUNICATIONS IN THEORETICAL PHYSICS 44.3(2005):573-576. |
入库方式： OAI收割
来源：高能物理研究所
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