Primordial black holes from an inflationary potential valley

被引：13
|
作者：
Gu, Bao-Min [1 ,2 ]
Shu, Fu-Wen [1 ,2 ,3 ]
Yang, Ke [4 ]
Zhang, Yu-Peng [5 ,6 ]
机构：
[1] Nanchang Univ, Dept Phys, Nanchang 330031, Peoples R China
[2] Nanchang Univ, Ctr Relativist Astrophys & High Energy Phys, Nanchang 330031, Peoples R China
[3] Yangzhou Univ, Ctr Gravitat & Cosmol, Yangzhou 225009, Peoples R China
[4] Southwest Univ, Sch Phys Sci & Technol, Chongqing 400715, Peoples R China
[5] Lanzhou Univ, Lanzhou Ctr Theoret Phys, Sch Phys Sci & Technol, Key Lab Theoret Phys Gansu Prov, Lanzhou 730000, Peoples R China
[6] Lanzhou Univ, Inst Theoret Phys, Res Ctr Gravitat, Lanzhou 730000, Peoples R China
来源：
PHYSICAL REVIEW D | 2023年 / 107卷 / 02期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
D O I：
10.1103/PhysRevD.107.023519
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Primordial black holes (PBHs) could be formed if large perturbations are generated on small scales in inflation. We study a toy inflation model with a local minimum. The curvature perturbations are enhanced when the inflaton passes through the local minimum, with more efficient amplification rate than that of quasi-inflection point inflation, leading to the production of PBHs on small scales. The PBHs could comprise the total dark matter in the mass window 1016-1020 g.
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页数：8
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