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Noncommutative chaotic inflation and WMAP three year results
Zhang X(张欣); Wu FQ(吴锋泉); Zhang, X; Wu, FQ
2006
发表期刊PHYSICS LETTERS B
卷号638期号:5-6页码:396-400
通讯作者CCAST, World Lab, Beijing 100080, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; Chinese Acad Sci, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China
文章类型Article
摘要Noncommutative inflation is based upon the consideration of some effects of the space-time uncertainty principle motivated by ideas from string/M theory. The CMB anisotropies may carry a signature of this very early Universe correction from the space-time uncertainty principle and can be used to place constraints on the parameters of the noncommutative inflation model. In this Letter we analyze the noncommutative chaotic inflation model by means of the WMAP three year results. We show that the noncommutative chaotic inflation model can produce a large negative running of spectral index within a reasonable range of e-folding number N, provided that the value of p in the potential V(phi) proportional to phi(P) is enhanced roughly to p similar to 12-18. Applying a likelihood analysis to the WMAP results, we find the best-fit values of parameters for the noncommutative chaotic inflation model. In addition, this model predicts a rather big gravitational wave which may be tested by the upcoming experiments. (c) 2006 Elsevier B.V. All rights reserved.
学科领域Physics
研究领域[WOS]Physics ; Physics
DOI10.1016/j.physletb.2006.05.085
URL查看原文
语种英语
研究领域[WOS]Physics ; Physics
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000239103100002
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/237313
专题理论物理室
作者单位中国科学院高能物理研究所
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GB/T 7714
Zhang X,Wu FQ,Zhang, X,et al. Noncommutative chaotic inflation and WMAP three year results[J]. PHYSICS LETTERS B,2006,638(5-6):396-400.
APA 张欣,吴锋泉,Zhang, X,&Wu, FQ.(2006).Noncommutative chaotic inflation and WMAP three year results.PHYSICS LETTERS B,638(5-6),396-400.
MLA 张欣,et al."Noncommutative chaotic inflation and WMAP three year results".PHYSICS LETTERS B 638.5-6(2006):396-400.
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