ITP OpenIR  > 理论物理所2015年知识产出
Preinflationary primordial perturbations
Cai, Y; Wang, YT; Piao, YS; Cai, Y (reprint author), Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China.
2015
发表期刊PHYSICAL REVIEW D
卷号92期号:2页码:23518
文章类型Article
摘要The large-scale power deficit in the cosmic microwave background fluctuations might be relevant with the physics of preinflation, a bounce, or a superinflationary phase preceding slow-roll inflation, which can provide a singular-free realization of inflation. We investigate the primordial perturbations from such preinflationary evolutions, which generally may consist of multiple phases with different background dynamics, and give a universal formula for the power spectrum of primordial perturbations in terms of the recursive Bogoliubov coefficients. We also apply our formula to corresponding cases and show how the intensity of large-scale power suppression is affected by the preinflationary physics.
学科领域Astronomy & Astrophysics ; Physics
资助者NSFC [11222546] ; NSFC [11222546] ; National Basic Research Program of China [2010CB832804] ; National Basic Research Program of China [2010CB832804] ; NSFC [11222546] ; NSFC [11222546] ; National Basic Research Program of China [2010CB832804] ; National Basic Research Program of China [2010CB832804]
DOIhttp://dx.doi.org/10.1103/PhysRevD.92.023518
关键词[WOS]INFLATIONARY UNIVERSE ; COSMOLOGY ; FLATNESS ; HORIZON ; BOUNCE
收录类别SCI
语种英语
资助者NSFC [11222546] ; NSFC [11222546] ; National Basic Research Program of China [2010CB832804] ; National Basic Research Program of China [2010CB832804] ; NSFC [11222546] ; NSFC [11222546] ; National Basic Research Program of China [2010CB832804] ; National Basic Research Program of China [2010CB832804]
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/20927
专题理论物理所2015年知识产出
通讯作者Cai, Y (reprint author), Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China.
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Cai, Y,Wang, YT,Piao, YS,et al. Preinflationary primordial perturbations[J]. PHYSICAL REVIEW D,2015,92(2):23518.
APA Cai, Y,Wang, YT,Piao, YS,&Cai, Y .(2015).Preinflationary primordial perturbations.PHYSICAL REVIEW D,92(2),23518.
MLA Cai, Y,et al."Preinflationary primordial perturbations".PHYSICAL REVIEW D 92.2(2015):23518.
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