Primordial trispectrum from entropy perturbations in multifield DBI model
文献类型：期刊论文
| 作者 | Gao, Xian; Hu, Bin; Gao, X , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China |
| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
 |
| 出版日期 | 2009 |
| 期号 | 8页码:- |
| 关键词 | Non-gaussianity K-inflation |
| ISSN号 | 1475-7516 |
| 英文摘要 | We investigate the primordial trispectra of the general multifield DBI inflationary model. In contrast with the single field model, the entropic modes can source the curvature perturbations on the super horizon scales, so we calculate the contributions from the interaction of four entropic modes mediating one adiabatic mode to the trispectra, at the large transfer limit (T(RS) >> 1). We obtained the general form of the 4-point correlation functions, plotted the shape diagrams in two specific momenta configurations, "equilateral configuration" and "specialized configuration". Our figures showed that we can easily distinguish the two different momenta configurations. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000270036800012 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5273]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Gao, X , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Xian,Hu, Bin,Gao, X , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China. Primordial trispectrum from entropy perturbations in multifield DBI model[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2009(8):-. |
| APA | Gao, Xian,Hu, Bin,&Gao, X , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China.(2009).Primordial trispectrum from entropy perturbations in multifield DBI model.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(8),-. |
| MLA | Gao, Xian,et al."Primordial trispectrum from entropy perturbations in multifield DBI model".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .8(2009):-. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
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。