The matter bounce curvaton scenario
文献类型：期刊论文
| 作者 | Cai YF(蔡一夫) ; Cai, YF; Brandenberger, R; Zhang, XM
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| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
 |
| 出版日期 | 2011 |
| 期号 | 3页码:3 |
| 关键词 | alternatives to inflation cosmological perturbation theory cosmic singularity physics of the early universe |
| 通讯作者 | [Cai, Yi-Fu] Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA ; [Cai, Yi-Fu ; Brandenberger, Robert ; Zhang, Xinmin] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Brandenberger, Robert] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada ; [Zhang, Xinmin] Chinese Acad Sci, TPCSF, Beijing 100049, Peoples R China |
| 英文摘要 | Massless scalar fields originating in a quantum vacuum state acquire a scale-invariant spectrum of fluctuations in a matter-dominated contracting universe. We show that these isocurvature fluctuations transfer to a scale-invariant spectrum of curvature fluctuations during a non-singular bounce phase. This provides a mechanism for enhancing the primordial adiabatic fluctuations and suppressing the ratio of tensor to scalar perturbations. Moreover, this mechanism leads to new sources of non-Gaussianity of curvature perturbations. |
| 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:000291258300003 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240345]  |
| 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,Cai, YF,Brandenberger, R,et al. The matter bounce curvaton scenario[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2011(3):3. |
| APA | 蔡一夫,Cai, YF,Brandenberger, R,&Zhang, XM.(2011).The matter bounce curvaton scenario.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(3),3. |
| MLA | 蔡一夫,et al."The matter bounce curvaton scenario".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .3(2011):3. |
入库方式： OAI收割
来源：高能物理研究所
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