A note on crossing the phantom divide in hybrid dark energy model
文献类型：期刊论文
| 作者 | Cai, RG ; Wei, H; Wei, H , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China
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| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2006 |
| 卷号 | 634期号:1页码:9-13 |
| 关键词 | High-redshift Supernovae Hubble-space-telescope Equation-of-state Cosmological Constant Constraints Transition Component Evolution Universe Lambda |
| ISSN号 | 0370-2693 |
| 英文摘要 | Recently a lot of attention has been given to building dark energy models in which the equation-of-state parameter w can cross the phantom divide w = -1. However, to our knowledge, these models with crossing the phantom divide only provide the possibility that w can cross -1. They do not answer another question: why crossing phantom divide occurs recently? Since in many existing models whose equation-of-state parameter can cross the phantom divide, w undulates around -1 randomly, why are we living in an epoch w < -1? This can be regarded as the second cosmological coincidence problem. In this Letter, we propose a possible approach to alleviate this problem within a hybrid dark energy model. (c) 2006 Published by Elsevier B.V. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000235627500003 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/6024]  |
| 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 | Wei, H , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai, RG,Wei, H,Wei, H , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China. A note on crossing the phantom divide in hybrid dark energy model[J]. PHYSICS LETTERS B,2006,634(1):9-13. |
| APA | Cai, RG,Wei, H,&Wei, H , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.(2006).A note on crossing the phantom divide in hybrid dark energy model.PHYSICS LETTERS B,634(1),9-13. |
| MLA | Cai, RG,et al."A note on crossing the phantom divide in hybrid dark energy model".PHYSICS LETTERS B 634.1(2006):9-13. |
入库方式： OAI收割
来源：理论物理研究所
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