Pre-inflation and trans-Planckian censorship

doi:10.1007/s11433-020-1573-5

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	Pre-inflation and trans-Planckian censorship
	Cai, Yong ; Piao, YunSong 1
刊名	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2020
卷号	63 期号:11 页码:110411
关键词	FLATNESS UNIVERSE HORIZON MODELS
ISSN号	1674-7348
DOI	10.1007/s11433-020-1573-5
英文摘要	We investigate the implication of trans-Planckian censorship conjecture (TCC) for the initial state of primordial perturbations. It is possible to set the state of perturbation modes in the infinite past as the Minkowski vacuum, only if the pre-inflationary era is past-complete. We calculate the evolution of the perturbation modes in such a pre-inflationary era and show that at the beginning of inflation the perturbation modes with wavelengths much shorter than the Hubble scale (but still larger than the Planck length scale) will behave as they are in the Bunch-Davis state. Therefore, a past-complete pre-inflationary evolution may automatically prepare the initial state required for the inflationary perturbations at the CMB window while obeying the TCC.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27440]
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.Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Cai, Yong,Piao, YunSong. Pre-inflation and trans-Planckian censorship[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2020,63(11):110411.
APA	Cai, Yong,&Piao, YunSong.(2020).Pre-inflation and trans-Planckian censorship.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,63(11),110411.
MLA	Cai, Yong,et al."Pre-inflation and trans-Planckian censorship".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 63.11(2020):110411.