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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
Source PublicationJOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Language英语
KeywordEinstein Static Universe Time-like Dimensions Extra Time Mass Hierarchy f(t) Gravity Stability Disappearance Singularity Braneworld Matter
AbstractThe 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
Issue1
Subject AreaPhysics
DOI10.1088/1475-7516/2014/01/048
Indexed BySCI
Funding OrganizationNational 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]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15516
Collection理论物理所科研产出_SCI论文
Corresponding AuthorYu, HW (reprint author), Hunan Normal Univ, Dept Phys, Changsha 410081, Hunan, Peoples R China.
Recommended Citation
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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