On the dark sector interactions
文献类型：期刊论文
| 作者 | Cai, Rong-Gen ; Su, Qiping; Cai, RG , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China
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| 刊名 | PHYSICAL REVIEW D
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| 出版日期 | 2010 |
| 卷号 | 81期号:10页码:- |
| 关键词 | Energy Quintessence Coincidence Constraints Model |
| ISSN号 | 1550-7998 |
| 英文摘要 | It is possible that there exist some interactions between dark energy (DE) and dark matter (DM), and a suitable interaction can alleviate the coincidence problem. Several phenomenological interacting forms are proposed and are fitted with observations in the literature. In this paper we investigate the possible interaction in a way independent of specific interacting forms by the use of observational data (supernovae, BAO, CMB, and Hubble parameter). We divide the whole range of redshift into a few bins and set the interacting term delta(z) to be a constant in each redshift bin. We consider four parametrizations of the equation of state w(de) for DE and find that delta(z) is likely to cross the noninteracting (delta = 0) and have an oscillation form. It suggests that to study the interaction between DE and DM, more general phenomenological forms of the interacting term should be considered. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000278146700027 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5106]  |
| 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 | Cai, RG , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai, Rong-Gen,Su, Qiping,Cai, RG , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China. On the dark sector interactions[J]. PHYSICAL REVIEW D,2010,81(10):-. |
| APA | Cai, Rong-Gen,Su, Qiping,&Cai, RG , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China.(2010).On the dark sector interactions.PHYSICAL REVIEW D,81(10),-. |
| MLA | Cai, Rong-Gen,et al."On the dark sector interactions".PHYSICAL REVIEW D 81.10(2010):-. |
入库方式： OAI收割
来源：理论物理研究所
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