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Zhang, KT; Wu, PX; Yu, HW; Yu, HW (reprint author), Hunan Normal Univ, Dept Phys, Changsha 410081, Hunan, Peoples R China.
Emergent universe in spatially flat cosmological model
发表期刊JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
语种英语
关键词Einstein Static Universe Time-like Dimensions Extra Time Mass Hierarchy f(t) Gravity Stability Disappearance Singularity Braneworld Matter
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.
2014
ISSN1475-7516
期号1
学科领域Physics
DOI10.1088/1475-7516/2014/01/048
收录类别SCI
项目资助者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] ; 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] ; 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] ; 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]
引用统计
被引频次:12[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/311006/15516
专题理论物理所科研产出_SCI论文
通讯作者Yu, HW (reprint author), Hunan Normal Univ, Dept Phys, Changsha 410081, Hunan, Peoples R China.
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GB/T 7714
Zhang, KT,Wu, PX,Yu, HW,et al. Emergent universe in spatially flat cosmological model[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2014(1).
APA Zhang, KT,Wu, PX,Yu, HW,&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).
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