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Cheng, C; Huang, QG; Huang, QG (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
The tilt of primordial gravitational waves spectra from BICEP2
发表期刊MODERN PHYSICS LETTERS A
语种英语
关键词Microwave Background Anisotropies Inflationary Universe Hubble Constant Flatness Horizon Wmap
摘要In this paper we constrain the tilt of the spectrum of primordial gravitational waves from Background Imaging of Cosmic Extragalactic Polarization (BICEP2) data only. We find r = 0.21(-0.10)(+0.04) and n(t) = -0.06(-0.23) (+0.25) (at 68% C.L.) which implies that a scale-invariant primordial gravitational waves spectra is consistent with BICEP2 nicely. Our results provide evidence for supporting inflation model, and the alternative models, for example the ekpyrotic model which predicts n(t) = 2, are ruled out at high significance level.
2014
ISSN0217-7323
卷号29期号:33页码:1450185
学科领域Physics
DOI10.1142/S0217732314501855
收录类别SCI
项目资助者Knowledge Innovation Program of Chinese Academy of Science; NSFC [10821504, 11322545, 11335012] ; Knowledge Innovation Program of Chinese Academy of Science; NSFC [10821504, 11322545, 11335012] ; Knowledge Innovation Program of Chinese Academy of Science; NSFC [10821504, 11322545, 11335012] ; Knowledge Innovation Program of Chinese Academy of Science; NSFC [10821504, 11322545, 11335012]
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15601
专题理论物理所科研产出_SCI论文
通讯作者Huang, QG (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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GB/T 7714
Cheng, C,Huang, QG,Huang, QG . The tilt of primordial gravitational waves spectra from BICEP2[J]. MODERN PHYSICS LETTERS A,2014,29(33):1450185.
APA Cheng, C,Huang, QG,&Huang, QG .(2014).The tilt of primordial gravitational waves spectra from BICEP2.MODERN PHYSICS LETTERS A,29(33),1450185.
MLA Cheng, C,et al."The tilt of primordial gravitational waves spectra from BICEP2".MODERN PHYSICS LETTERS A 29.33(2014):1450185.
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