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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
Source PublicationMODERN PHYSICS LETTERS A
Language英语
KeywordMicrowave Background Anisotropies Inflationary Universe Hubble Constant Flatness Horizon Wmap
AbstractIn 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
Volume29Issue:33Pages:1450185
Subject AreaPhysics
DOI10.1142/S0217732314501855
Indexed BySCI
Funding OrganizationKnowledge 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]
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15601
Collection理论物理所科研产出_SCI论文
Corresponding AuthorHuang, QG (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Recommended Citation
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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