The Primordial Black Hole Formation from Single-Field Inflation is Not Ruled Out
Cosmology and Nongalactic Astrophysics
2023-01-03 v1 High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
A standard scenario to form primordial black holes in the early universe is based on a phase of ultra-slow-roll in single-field inflation when the amplitude of the short scale modes is enhanced compared to the CMB plateau. Based on general arguments, we show that the loop corrections to the large-scale linear power spectrum from the short modes are small and conclude that the scenario is not ruled out.
Keywords
Cite
@article{arxiv.2301.00599,
title = {The Primordial Black Hole Formation from Single-Field Inflation is Not Ruled Out},
author = {Antonio Riotto},
journal= {arXiv preprint arXiv:2301.00599},
year = {2023}
}
Comments
9 pages, LaTeX file