Loop corrections to cosmological perturbations in multi-field inflationary models
文献类型：期刊论文
| 作者 | Gao, Xian; Xu, Fanrong; Gao, X , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China |
| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
 |
| 出版日期 | 2009 |
| 期号 | 7页码:- |
| 关键词 | Vacuum Polarization Fluctuations Mass |
| ISSN号 | 1475-7516 |
| 英文摘要 | We investigate one-loop quantum corrections to the power spectrum of adiabatic perturbation from entropy modes/adiabatic mode cross-interactions in multiple DBI inflationary models. We find that due to the non-canonical kinetic term in DBI models, the loop corrections are enhanced by slow-varying parameter epsilon and small sound speed c(s). Thus, in general the loop-corrections in multi-DBI models can be large. Moreover, we find that the loop-corrections from adiabatic/entropy cross-interaction vertices are IR finite. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000269971100029 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5291]  |
| 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, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Xian,Xu, Fanrong,Gao, X , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China. Loop corrections to cosmological perturbations in multi-field inflationary models[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2009(7):-. |
| APA | Gao, Xian,Xu, Fanrong,&Gao, X , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China.(2009).Loop corrections to cosmological perturbations in multi-field inflationary models.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(7),-. |
| MLA | Gao, Xian,et al."Loop corrections to cosmological perturbations in multi-field inflationary models".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .7(2009):-. |
入库方式： OAI收割
来源：理论物理研究所
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