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| Timelike vector field dynamics in the early universe | |
| Koh, S; Hu, B; Koh, S (reprint author), Jeju Natl Univ, Dept Sci Educ, Cheju 690756, South Korea. | |
| 2012 | |
| 发表期刊 | JOURNAL OF THE KOREAN PHYSICAL SOCIETY
 |
| ISSN | 0374-4884 |
| 卷号 | 60期号:11页码:1983-1992 |
| 摘要 | We study the dynamics of a timelike vector field when the background spacetime is in an accelerating phase in the early universe. With a timelike vector field, an inflationary phase is shown to be difficult to realize, so we investigate the evolution of a vector field within a scalar field-driven inflation model. Also, we calculate the power spectrum of the vector field without considering the metric perturbations. While the time component of the vector field perturbations provides a scale invariant spectrum when zeta = 0, where zeta is a nonminimal coupling parameter, both the longitudinal and the transverse perturbations give a scale invariant spectrum when zeta = 1/6 in the absence of the coupling terms. The deviation of the power spectrum due to the coupling terms is calculated by use of the Greens' function. |
| 部门归属 | [Koh, Seoktae] Jeju Natl Univ, Dept Sci Educ, Cheju 690756, South Korea; [Koh, Seoktae; Hu, Bin] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China |
| 关键词 | Microwave Supernovae |
| 学科领域 | Physics |
| 资助者 | National Research Foundation of Korea (NRF); Ministry of Education, Science and Technology [2011-0025976]; Chinese Academy of Sciences [KJCX3-SYW-N2]; NSFC [10821504, 10525060] ; National Research Foundation of Korea (NRF); Ministry of Education, Science and Technology [2011-0025976]; Chinese Academy of Sciences [KJCX3-SYW-N2]; NSFC [10821504, 10525060] ; National Research Foundation of Korea (NRF); Ministry of Education, Science and Technology [2011-0025976]; Chinese Academy of Sciences [KJCX3-SYW-N2]; NSFC [10821504, 10525060] ; National Research Foundation of Korea (NRF); Ministry of Education, Science and Technology [2011-0025976]; Chinese Academy of Sciences [KJCX3-SYW-N2]; NSFC [10821504, 10525060] ; National Research Foundation of Korea (NRF); Ministry of Education, Science and Technology [2011-0025976]; Chinese Academy of Sciences [KJCX3-SYW-N2]; NSFC [10821504, 10525060] ; National Research Foundation of Korea (NRF); Ministry of Education, Science and Technology [2011-0025976]; Chinese Academy of Sciences [KJCX3-SYW-N2]; NSFC [10821504, 10525060] ; National Research Foundation of Korea (NRF); Ministry of Education, Science and Technology [2011-0025976]; Chinese Academy of Sciences [KJCX3-SYW-N2]; NSFC [10821504, 10525060] ; National Research Foundation of Korea (NRF); Ministry of Education, Science and Technology [2011-0025976]; Chinese Academy of Sciences [KJCX3-SYW-N2]; NSFC [10821504, 10525060] |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助者 | National Research Foundation of Korea (NRF); Ministry of Education, Science and Technology [2011-0025976]; Chinese Academy of Sciences [KJCX3-SYW-N2]; NSFC [10821504, 10525060] ; National Research Foundation of Korea (NRF); Ministry of Education, Science and Technology [2011-0025976]; Chinese Academy of Sciences [KJCX3-SYW-N2]; NSFC [10821504, 10525060] ; National Research Foundation of Korea (NRF); Ministry of Education, Science and Technology [2011-0025976]; Chinese Academy of Sciences [KJCX3-SYW-N2]; NSFC [10821504, 10525060] ; National Research Foundation of Korea (NRF); Ministry of Education, Science and Technology [2011-0025976]; Chinese Academy of Sciences [KJCX3-SYW-N2]; NSFC [10821504, 10525060] ; National Research Foundation of Korea (NRF); Ministry of Education, Science and Technology [2011-0025976]; Chinese Academy of Sciences [KJCX3-SYW-N2]; NSFC [10821504, 10525060] ; National Research Foundation of Korea (NRF); Ministry of Education, Science and Technology [2011-0025976]; Chinese Academy of Sciences [KJCX3-SYW-N2]; NSFC [10821504, 10525060] ; National Research Foundation of Korea (NRF); Ministry of Education, Science and Technology [2011-0025976]; Chinese Academy of Sciences [KJCX3-SYW-N2]; NSFC [10821504, 10525060] ; National Research Foundation of Korea (NRF); Ministry of Education, Science and Technology [2011-0025976]; Chinese Academy of Sciences [KJCX3-SYW-N2]; NSFC [10821504, 10525060] |
| WOS记录号 | WOS:000305223000029 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.itp.ac.cn/handle/311006/15089 |
| 专题 | 理论物理所SCI论文 |
| 通讯作者 | Koh, S (reprint author), Jeju Natl Univ, Dept Sci Educ, Cheju 690756, South Korea. |
| 推荐引用方式 GB/T 7714 | Koh, S,Hu, B,Koh, S . Timelike vector field dynamics in the early universe[J]. JOURNAL OF THE KOREAN PHYSICAL SOCIETY,2012,60(11):1983-1992. |
| APA | Koh, S,Hu, B,&Koh, S .(2012).Timelike vector field dynamics in the early universe.JOURNAL OF THE KOREAN PHYSICAL SOCIETY,60(11),1983-1992. |
| MLA | Koh, S,et al."Timelike vector field dynamics in the early universe".JOURNAL OF THE KOREAN PHYSICAL SOCIETY 60.11(2012):1983-1992. |
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