Some studies on dark energy related problems
文献类型：期刊论文
| 作者 | Wang, Fei; Yang, Jin Min; Wang, F , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China |
| 刊名 | EUROPEAN PHYSICAL JOURNAL C
 |
| 出版日期 | 2006 |
| 卷号 | 45期号:3页码:815-818 |
| 关键词 | Cosmological Constant Supersymmetry Breaking Flat Directions Early Universe R-symmetry Q-ball Consequences Baryogenesis Matter Light |
| ISSN号 | 1434-6044 |
| 英文摘要 | In this work we perform some studies related to dark energy. Firstly, we propose a dynamical approach to explain the dark energy contents of the universe. We assume that a massless scalar field couples to the Hubble parameter with some Planck-mass suppressed interactions. This scalar field develops a Hubble parameter-dependent (thus time-dependent) vacuum expectation value, which renders a time-independent relative density for the dark energy and thus can explain the coincidence of the dark energy density of the universe. Furthermore, we assume that the dark matter particle is metastable and decays very late into the dark energy scalar field. Such a conversion of matter to dark energy can give an explanation for the starting time of the accelerating expansion of the universe. Secondly, we introduce multiple Affleck-Dine fields to the landscape scenario of dark energy in order to have the required baryon-asymmetrical universe. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000241559300019 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/6036]  |
| 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, F , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Fei,Yang, Jin Min,Wang, F , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China. Some studies on dark energy related problems[J]. EUROPEAN PHYSICAL JOURNAL C,2006,45(3):815-818. |
| APA | Wang, Fei,Yang, Jin Min,&Wang, F , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.(2006).Some studies on dark energy related problems.EUROPEAN PHYSICAL JOURNAL C,45(3),815-818. |
| MLA | Wang, Fei,et al."Some studies on dark energy related problems".EUROPEAN PHYSICAL JOURNAL C 45.3(2006):815-818. |
入库方式： OAI收割
来源：理论物理研究所
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