Emergent universe in spatially flat cosmological model

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	Emergent universe in spatially flat cosmological model
	Zhang, KT ; Wu, PX ; Yu, HW
刊名	JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
	2014
期号	1
关键词	EINSTEIN STATIC UNIVERSE TIME-LIKE DIMENSIONS EXTRA TIME MASS HIERARCHY F(T) GRAVITY STABILITY DISAPPEARANCE SINGULARITY BRANEWORLD MATTER
ISSN号	1475-7516
通讯作者	Yu, HW (reprint author), Hunan Normal Univ, Dept Phys, Changsha 410081, Hunan, Peoples R China.
英文摘要	The scenario of an emergent universe provides a promising resolution to the big bang singularity in universes with positive or negative spatial curvature. It however remains unclear whether the scenario can be successfully implemented in a spatially flat universe which seems to be favored by present cosmological observations. In this paper, we study the stability of Einstein static state solutions in a spatially flat Shtanov-Sahni braneworld scenario. With a negative dark radiation term included and assuming a scalar field as the only matter energy component, we find that the universe can stay at an Einstein static state past eternally and then evolve to an inflation phase naturally as the scalar field climbs up its potential slowly. In addition, we also propose a concrete potential of the scalar field that realizes this scenario.
学科主题	Physics
收录类别	SCI
资助信息	National Natural Science Foundation of China [10935013, 11075083, 11175093, 11222545, 11375092]; Zhejiang Provincial Natural Science Foundation of China [Z6100077, R6110518]; FANEDD [200922]; National Basic Research Program of China [2010CB832803]; SRFDP [20124306110001]; PCSIRT [IRT0964]; Hunan Provincial Natural Science Foundation of China [11JJ7001]
原文出处	http://dx.doi.org/10.1088/1475-7516/2014/01/048
语种	英语
WOS记录号	WOS:000331134400049
公开日期	2014-04-25
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15516]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Zhang, KT,Wu, PX,Yu, HW. Emergent universe in spatially flat cosmological model[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2014(1).
APA	Zhang, KT,Wu, PX,&Yu, HW.(2014).Emergent universe in spatially flat cosmological model.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(1).
MLA	Zhang, KT,et al."Emergent universe in spatially flat cosmological model".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .1(2014).