Primordial Black Holes from Passive Density Fluctuations
High Energy Physics - Phenomenology
2015-06-05 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
In this paper, we show that if passive fluctuations are considered, primordial black holes (PBHs) can be easily produced in the framework of single-field, slow-roll inflation models. The formation of PBHs is due to the blue spectrum of passive fluctuations and an enhancement of the spectral range which exits horizon near the end of inflation. Therefore the PBHs are light with masses depending on the number of e-folds when the scale of our observable universe leaves horizon. These PBHs are likely to have evaporated and cannot be a candidate for dark matter but they may still affect the early universe.
Cite
@article{arxiv.1206.1685,
title = {Primordial Black Holes from Passive Density Fluctuations},
author = {Chia-Min Lin and Kin-Wang Ng},
journal= {arXiv preprint arXiv:1206.1685},
year = {2015}
}
Comments
7 pages, 1 figure, to appear in Physics Letters B