A note on non-commutative brane inflation
文献类型：期刊论文
| 作者 | Zhang, X , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China; Zhang, Xin |
| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
 |
| 出版日期 | 2006 |
| 期号 | 12页码:- |
| 关键词 | Probe Wmap Observations Trans-planckian Physics Spectral Index Cosmological Parameters Power Spectra Universe Maps Flatness Horizon Strings |
| ISSN号 | 1475-7516 |
| 英文摘要 | In this paper, we investigate the non-commutative KKLMMT (Kachru-Kallosh-Linde-Maldacena-McAllister-Trivedi) D3/(D) over bar3-brane inflation scenario in detail. Incorporation of the brane inflation scenario and the non-commutative inflation scenario can nicely explain the large negative running of the spectral index as indicated by WMAP three-year data and can significantly release the fine-tuning for the parameter beta. Using the WMAP three-year results (blue-tilted spectral index with large negative running), we explore the parameter space and give the constraints and predictions for the inflationary parameters and cosmological observables in this scenario. We show that this scenario predicts a quite large tensor/scalar ratio and, what is more, a too large cosmic string tension (assuming that the string coupling g(s) is in its likely range from 0.1 to 1) to be compatible with the present observational bound. A more detailed analysis reveals that this model has some inconsistencies according to the fit to WMAP three-year results. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000243023400019 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5852]  |
| 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 | Zhang, X , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, X , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China,Zhang, Xin. A note on non-commutative brane inflation[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2006(12):-. |
| APA | Zhang, X , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China,&Zhang, Xin.(2006).A note on non-commutative brane inflation.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(12),-. |
| MLA | Zhang, X , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China,et al."A note on non-commutative brane inflation".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .12(2006):-. |
入库方式： OAI收割
来源：理论物理研究所
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