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arXiv · 1401.6960

Formation of subhorizon black holes from preheating

E. Torres-Lomas·Juan Carlos Hidalgo·Karim A. Malik·L. Arturo Ureña-López
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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.

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E. Torres-Lomas, Juan Carlos Hidalgo, Karim A. Malik, L. Arturo Ureña-López. 2014-04-29. Formation of subhorizon black holes from preheating. https://doi.org/10.1103/physrevd.89.083008

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