Rotating a curvaton brane in a warped throat
文献类型：期刊论文
| 作者 | Zhang, J ; Cai YF(蔡一夫); Cai, YF; Piao, YS
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| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
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| 出版日期 | 2010 |
| 期号 | 5页码:1 |
| 关键词 | string theory and cosmology cosmological perturbation theory |
| 通讯作者 | [Zhang, Jun ; Piao, Yun-Song] Chinese Acad Sci, Grad Univ, Coll Phys Sci, Beijing 100049, Peoples R China ; [Cai, Yi-Fu] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China |
| 英文摘要 | In this paper we study a curvaton model obtained by considering a probe anti-D3-brane with angular motion at the bottom of a KS throat with approximate isometries. We calculate the spectrum of curvature perturbations and the non-Gaussianities of this model. Specifically, we consider the limit of relativistic rotation of the curvaton brane which leads to a small sound speed, and thus it can be viewed as an implementation of the DBI-curvaton mechanism. We find that the primordial power spectrum is nearly scale-invariant while the non-Gaussianity of local type is sizable and that of equilateral type is usually large and negative. Moreover, we study both the theoretical and observational constraints on this model, and find that there exists a sizable allowed region for the phase space of this model. |
| 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:000279490800039 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240340]  |
| 专题 | 高能物理研究所_理论物理室 高能物理研究所_实验物理中心 |
| 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 | Zhang, J,Cai YF,Cai, YF,et al. Rotating a curvaton brane in a warped throat[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2010(5):1. |
| APA | Zhang, J,蔡一夫,Cai, YF,&Piao, YS.(2010).Rotating a curvaton brane in a warped throat.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(5),1. |
| MLA | Zhang, J,et al."Rotating a curvaton brane in a warped throat".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .5(2010):1. |
入库方式： OAI收割
来源：高能物理研究所
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