Timelike vector field dynamics in the early universe

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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
发表期刊	JOURNAL OF THE KOREAN PHYSICAL SOCIETY
语种	英语
关键词	Microwave Supernovae
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.
	2012
ISSN	0374-4884
卷号	60 期号:11 页码:1983-1992
学科领域	Physics
收录类别	SCI
项目资助者	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]
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.itp.ac.cn/handle/311006/15089
专题	理论物理所科研产出_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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