One-loop correction to the enhanced curvature perturbation with local-type non-Gaussianity for the formation of primordial black holes

doi:10.1103/PhysRevD.106.063508

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	One-loop correction to the enhanced curvature perturbation with local-type non-Gaussianity for the formation of primordial black holes
	Meng, De-Shuang ; Yuan, Chen ; Huang, Qing-Guo
刊名	PHYSICAL REVIEW D
	2022
卷号	106 期号:6 页码:63508
ISSN号	2470-0010
DOI	10.1103/PhysRevD.106.063508
英文摘要	As one of the promising candidates of cold dark matter, primordial black holes (PBHs) were formed due to the collapse of overdense regions generated by the enhanced curvature perturbations during the radiation-dominated era. The enhanced curvature perturbations are expected to be non-Gaussian in some relevant inflation models, and hence, the higher-order loop corrections to the curvature power spectrum might be non-negligible as well as altering the abundance of PBHs. In this paper, we calculate the one-loop correction to the curvature power spectrum with local-type non-Gaussianities characterized by FNL and GNL standing for the quadratic and cubic non-Gaussian parameters, respectively. Requiring that the one -loop correction be subdominant, we find a perturbativity condition, namely, I2cAF2NL + 6AGNLI << 1, where c is a constant coefficient which can be explicitly calculated in the given model, and A denotes the variance of the Gaussian part of the enhanced curvature perturbation, and such a perturbativity condition can provide a stringent constraint on the relevant inflation models for the formation of PBHs.
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/311006/27815]
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.UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China 2.[Meng, De-Shuang 3.Yuan, Chen 4.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 5.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Meng, De-Shuang,Yuan, Chen,Huang, Qing-Guo. One-loop correction to the enhanced curvature perturbation with local-type non-Gaussianity for the formation of primordial black holes[J]. PHYSICAL REVIEW D,2022,106(6):63508.
APA	Meng, De-Shuang,Yuan, Chen,&Huang, Qing-Guo.(2022).One-loop correction to the enhanced curvature perturbation with local-type non-Gaussianity for the formation of primordial black holes.PHYSICAL REVIEW D,106(6),63508.
MLA	Meng, De-Shuang,et al."One-loop correction to the enhanced curvature perturbation with local-type non-Gaussianity for the formation of primordial black holes".PHYSICAL REVIEW D 106.6(2022):63508.