Formation of subhorizon black holes from preheating
Abstract
We study the production of primordial black holes (PBHs) during the preheating stage that follows a chaotic inflationary phase. The scalar fields present in the process are evolved numerically using a modified version of the HLATTICE code. From the output of the numerical simulation, we compute the probability distribution of curvature fluctuations, paying particular attention to sub-horizon scales. We find that in some specific models these modes grow to large amplitudes developing highly non-Gaussian probability distributions. We then calculate PBH abundances using the standard Press-Schechter criterion and find that overproduction of PBHs is likely in some regions of the chaotic preheating parameter space.
Keywords
Cite
@article{arxiv.1401.6960,
title = {Formation of subhorizon black holes from preheating},
author = {E. Torres-Lomas and Juan Carlos Hidalgo and Karim A. Malik and L. Arturo Ureña-López},
journal= {arXiv preprint arXiv:1401.6960},
year = {2014}
}
Comments
Corrected typos, added references. Matches version accepted by PRD