The Primordial Black Hole Formation from Single-Field Inflation is Not Ruled Out

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.

9 pages, LaTeX file

Cited by in corpus (22)

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