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Cai, Y; Wang, YT; Zhao, JY; Piao, YS
Primordial perturbations with pre-inflationary bounce
发表期刊PHYSICAL REVIEW D
语种英语
关键词FIELD-EQUATIONS UNIVERSE SINGULARITY COSMOLOGY FLATNESS HORIZON
摘要Based on the effective field theory (EFT) of nonsingular cosmologies, we build a stable model, without the ghost and gradient instabilities, of bounce-inflation (inflation is preceded by a cosmological bounce). We perform a full simulation for the evolution of scalar perturbation, and find that the perturbation spectrum has a large-scale suppression (as expected), which is consistent with the power deficit of the cosmic microwave background (CMB) TT-spectrum at low multipoles, but unexpectedly, it also shows itself one marked lower valley. The depth of valley is relevant with the physics around the bounce scale, which is model-dependent.
2018
ISSN2470-0010
卷号97期号:10页码:103535
学科领域Astronomy & Astrophysics ; Physics
学科门类Astronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1103/PhysRevD.97.103535
收录类别SCIE
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/22894
专题理论物理所科研产出_SCI论文
作者单位1.[Cai, Yong
2.Wang, Yu-Tong
3.Zhao, Jin-Yun
4.Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China
5.Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China
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GB/T 7714
Cai, Y,Wang, YT,Zhao, JY,et al. Primordial perturbations with pre-inflationary bounce[J]. PHYSICAL REVIEW D,2018,97(10):103535.
APA Cai, Y,Wang, YT,Zhao, JY,&Piao, YS.(2018).Primordial perturbations with pre-inflationary bounce.PHYSICAL REVIEW D,97(10),103535.
MLA Cai, Y,et al."Primordial perturbations with pre-inflationary bounce".PHYSICAL REVIEW D 97.10(2018):103535.
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