Primordial black holes from an inflationary potential valley
Cosmology and Nongalactic Astrophysics
2023-09-01 v2 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
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 --g.
Keywords
Cite
@article{arxiv.2207.09968,
title = {Primordial black holes from an inflationary potential valley},
author = {Bao-Min Gu and Fu-Wen Shu and Ke Yang and Yu-Peng Zhang},
journal= {arXiv preprint arXiv:2207.09968},
year = {2023}
}
Comments
7 pages,4 figures