ITP OpenIR  > SCI期刊论文
Cai, Y; Wang, YT; Zhao, JY; Piao, YS
Primordial perturbations with pre-inflationary bounce
Source PublicationPHYSICAL REVIEW D
AbstractBased 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.
Subject AreaAstronomy & Astrophysics ; Physics
MOST Discipline CatalogueAstronomy & Astrophysics ; Physics, Particles & Fields
Indexed BySCIE
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.[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
Recommended Citation
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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