Evolution of metric perturbations in a model of nonsingular inflationary cosmology
文献类型：期刊论文
| 作者 | Cai YF(蔡一夫) ; Zhang XM(张新民); Cai, YF; Zhang, XM
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| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
 |
| 出版日期 | 2009 |
| 期号 | 6页码:3 |
| 关键词 | gravity waves/theory cosmological perturbation theory physics of the early universe |
| 通讯作者 | [Cai, Yi-Fu ; Zhang, Xinmin] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China |
| 英文摘要 | In this paper we study the primordial perturbations generated in an inflation model in which the period of inflation is preceded by a cosmological bounce. After reviewing the background evolution in this model we study the resulting curvature perturbations, entropy fluctuations and non-Gaussianities. Our results show that both the power spectrum of curvature perturbations and the spectra describing the non-Gaussianities obtain oscillatory features. Next, we calculate the tensor perturbations in this model and find a valley in its spectrum. This is a generic feature of inflationary models with a bounce. Further observational signatures and theoretical implications of the model are discussed. |
| 学科主题 | Astronomy & Astrophysics; Physics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 研究领域[WOS] | Astronomy & Astrophysics ; Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000267776100035 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240346]  |
| 专题 | 高能物理研究所_理论物理室 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Cai YF,Zhang XM,Cai, YF,et al. Evolution of metric perturbations in a model of nonsingular inflationary cosmology[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2009(6):3. |
| APA | 蔡一夫,张新民,Cai, YF,&Zhang, XM.(2009).Evolution of metric perturbations in a model of nonsingular inflationary cosmology.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(6),3. |
| MLA | 蔡一夫,et al."Evolution of metric perturbations in a model of nonsingular inflationary cosmology".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .6(2009):3. |
入库方式： OAI收割
来源：高能物理研究所
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