%0 Journal Article
%T Inflationary preheating and primordial black holes
%A Bruce A. Bassett
%A Shinji Tsujikawa
%J Physics
%D 2000
%I arXiv
%R 10.1103/PhysRevD.63.123503
%X Preheating after inflation may over-produce primordial black holes (PBH's) in many regions of parameter space. As an example we study two-field models with a massless self-interacting inflaton, taking into account second order field and metric backreaction effects as spatial averages. We find that a complex quilt of parameter regions above the Gaussian PBH over-production threshold emerges due to the enhancement of curvature perturbations on all scales. It should be possible to constrain realistic models of inflation through PBH over-production although many issues, such as rescattering and non-Gaussianity, remain unsolved or unexplored.
%U http://arxiv.org/abs/hep-ph/0008328v2