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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
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
语种英语
关键词Spacetime Singularities Classical Theories Of Gravity CoSmology Of Theories Beyond The Sm
摘要In 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
期号1
学科领域Physics
DOIhttp://dx.doi.org/10.1007/JHEP01(2017)090
项目资助者NSFC [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]
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/22147
专题理论物理所科研产出_SCI论文
通讯作者Cai, Y (reprint author), Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China.
推荐引用方式
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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