中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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
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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
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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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