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| Koh, S; Hu, B; Koh, S (reprint author), Jeju Natl Univ, Dept Sci Educ, Cheju 690756, South Korea. | |
| Timelike vector field dynamics in the early universe | |
| Source Publication | JOURNAL OF THE KOREAN PHYSICAL SOCIETY
 |
| Language | 英语 |
| Keyword | Microwave Supernovae |
| Abstract | 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. |
| 2012 | |
| ISSN | 0374-4884 |
| Volume | 60Issue:11Pages:1983-1992 |
| Subject Area | Physics |
| Indexed By | SCI |
| Funding Organization | 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] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/15089 |
| Collection | 理论物理所科研产出_SCI论文 |
| Corresponding Author | Koh, S (reprint author), Jeju Natl Univ, Dept Sci Educ, Cheju 690756, South Korea. |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Timelike vector fiel（258KB） | 开放获取 | License | Application Full Text | |||
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