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题名: The challenge for single field inflation with BICEP2 result
作者: Gao, Q ;  Gong, YG
刊名: PHYSICS LETTERS B
出版日期: 2014
卷号: 734, 页码:41-43
学科分类: Physics
DOI: 10.1016/j.physletb.2014.05.018
通讯作者: Gong, YG (reprint author), Huazhong Univ Sci & Technol, Sch Phys, MOE Key Lab Fundamental Quant Measurement, Wuhan 430074, Peoples R China.
部门归属: [Gao, Qing ;  Gong, Yungui] Huazhong Univ Sci & Technol, Sch Phys, MOE Key Lab Fundamental Quant Measurement, Wuhan 430074, Peoples R China ;  [Gong, Yungui] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
英文摘要: The detection of B-mode power spectrum by the BICEP2 collaboration constrains the tensor-to-scalar ratio r = 0.20(-0.05)(+0.07) for the lensed-Lambda CDM model. The consistency of this big value with the Planck results requires a large running of the spectral index. The large values of the tensor-to-scalar ratio and the running of the spectral index put a challenge to single field inflation. For the chaotic inflation, the larger the value of the tensor-to-scalar ratio is, the smaller the value of the running of the spectral index is. For the natural inflation, the absolute value of the running of the spectral index has an upper limit. (C) 2014 The Authors. Published by Elsevier B.V.
资助者: National Basic Science Program (Project 973) of China [2010CB833004]; NNSF of China [11175270]; Program for New Century Excellent Talents in University [NCET-12-0205]; Fundamental Research Funds for the Central Universities [2013YQ055]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000338943900009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15730
Appears in Collections:理论物理所2014年知识产出 _期刊论文

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Recommended Citation:
Gao, Q,Gong, YG. The challenge for single field inflation with BICEP2 result[J]. PHYSICS LETTERS B,2014,734:41-43.
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