Primordial black hole formation in Starobinsky's linear potential model

doi:10.1088/1475-7516/2023/06/018

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	Primordial black hole formation in Starobinsky's linear potential model
	Pi, Shi 1,2; Wang, Jianing 3
刊名	JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
	2023
期号	6 页码:18
关键词	INFLATIONARY UNIVERSE CONSTRAINTS PERTURBATIONS SPECTRUM FLATNESS HORIZON SPACE
ISSN号	1475-7516
DOI	10.1088/1475-7516/2023/06/018
英文摘要	We study the power spectrum of the comoving curvature perturbation R in the model that glues two linear potentials of different slopes, originally proposed by Starobinsky. We find that the enhanced power spectrum reaches its maximum at the wavenumber which is r times the junction scale. The peak is & SIM;2.61 times larger than the ultraviolet plateau. We also show that its near-peak behavior can be well approximated by a constant-roll model, once we define the effective ultra-slow-roll e-folding number appropriately by considering the contribution from non-single-clock phase only. Such an abrupt transition to non-attractor phase can leave some interesting characteristic features in the energy spectrum of the scalar induced gravitational waves, which are detectable in the space-borne interferometers if the primordial black holes generated at such a high peak are all the dark matter.
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/311006/28056]
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.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China 3.Kavli Inst Phys & Math Universe WPI, Chiba 2778583, Japan 4.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Pi, Shi,Wang, Jianing. Primordial black hole formation in Starobinsky's linear potential model[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2023(6):18.
APA	Pi, Shi,&Wang, Jianing.(2023).Primordial black hole formation in Starobinsky's linear potential model.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(6),18.
MLA	Pi, Shi,et al."Primordial black hole formation in Starobinsky's linear potential model".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .6(2023):18.