The matter bounce curvaton scenario | |
Cai YF(蔡一夫); Cai, YF; Brandenberger, R; Zhang, XM | |
刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS |
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 |
内容类型 | 期刊论文 |
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. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论