The Effective Field Theory of nonsingular cosmology
文献类型：期刊论文
| 作者 | 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. |
| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2017 |
| 期号 | 1 |
| 关键词 | Spacetime Singularities Classical Theories Of Gravity CoSmology Of Theories Beyond The Sm |
| DOI | http://dx.doi.org/10.1007/JHEP01(2017)090 |
| 英文摘要 | 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. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/22147]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 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). |
入库方式： OAI收割
来源：理论物理研究所
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