ITP OpenIR  > SCI期刊论文
Cai, Y; Wan, YP; Li, HG; Qiu, TT; Piao, YS; Cai, Y (reprint author), Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China.
The Effective Field Theory of nonsingular cosmology
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
Language英语
KeywordSpacetime Singularities Classical Theories Of Gravity CoSmology Of Theories Beyond The Sm
AbstractIn this paper, we explore the nonsingular cosmology within the framework of the E ff ective Field Theory (EFT) of cosmological perturbations. Due to the recently proved no-go theorem, any nonsingular cosmological models based on the cubic Galileon su ff er from pathologies. We show how the EFT could help us clarify the origin of the no-go theorem, and o ff er us solutions to break the no-go. Particularly, we point out that the gradient instability can be removed by using some spatial derivative operators in EFT. Based on the EFT description, we obtain a realistic healthy nonsingular cosmological model, and show the perturbation spectrum can be consistent with the observations.
2017
Issue1
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1007/JHEP01(2017)090
Funding OrganizationNSFC [11222546, 11575188, 11405069] ; NSFC [11222546, 11575188, 11405069] ; NSFC [11222546, 11575188, 11405069] ; NSFC [11222546, 11575188, 11405069] ; Strategic Priority Research Program of Chinese Academy of Sciences [XDB23010100] ; Strategic Priority Research Program of Chinese Academy of Sciences [XDB23010100] ; Strategic Priority Research Program of Chinese Academy of Sciences [XDB23010100] ; Strategic Priority Research Program of Chinese Academy of Sciences [XDB23010100] ; Open Innovation Fund of Key Laboratory of Quark and Lepton Physics (MOE), Central China Normal University [QLPL2014P01] ; Open Innovation Fund of Key Laboratory of Quark and Lepton Physics (MOE), Central China Normal University [QLPL2014P01] ; Open Innovation Fund of Key Laboratory of Quark and Lepton Physics (MOE), Central China Normal University [QLPL2014P01] ; Open Innovation Fund of Key Laboratory of Quark and Lepton Physics (MOE), Central China Normal University [QLPL2014P01]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22147
CollectionSCI期刊论文
Corresponding AuthorCai, Y (reprint author), Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China.
Recommended Citation
GB/T 7714
Cai, Y,Wan, YP,Li, HG,et al. The Effective Field Theory of nonsingular cosmology[J]. JOURNAL OF HIGH ENERGY PHYSICS,2017(1).
APA Cai, Y,Wan, YP,Li, HG,Qiu, TT,Piao, YS,&Cai, Y .(2017).The Effective Field Theory of nonsingular cosmology.JOURNAL OF HIGH ENERGY PHYSICS(1).
MLA Cai, Y,et al."The Effective Field Theory of nonsingular cosmology".JOURNAL OF HIGH ENERGY PHYSICS .1(2017).
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