Emergent universe in spatially flat cosmological model
文献类型：期刊论文
| 作者 | Zhang, KT ; Wu, PX ; Yu, HW |
| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
 |
| 出版日期 | 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 |
| 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). |
入库方式： OAI收割
来源：理论物理研究所
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