Primordial perturbations with pre-inflationary bounce

doi:10.1103/PhysRevD.97.103535

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	Primordial perturbations with pre-inflationary bounce
	Cai, Y ; Wang, YT; Zhao, JY ; Piao, YS
刊名	PHYSICAL REVIEW D
	2018
卷号	97 期号:10 页码:103535
关键词	FIELD-EQUATIONS UNIVERSE SINGULARITY COSMOLOGY FLATNESS HORIZON
ISSN号	2470-0010
DOI	10.1103/PhysRevD.97.103535
英文摘要	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.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/22894]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Zhao, Jin-Yun 2.[Cai, Yong 3.Wang, Yu-Tong 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
推荐引用方式 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.