Inflationary preheating and primordial black holes

Bruce A. Bassett, Shinji Tsujikawa

Research output: Contribution to journalArticle

1 Citation (Scopus)


Preheating after inflation may overproduce primordial black holes (PBH's) in many regions of parameter space. As an example we study two-field models with a massless self-interacting inflation, taking into account second order field and metric back reaction effects as spatial averages. We find that a complex quilt of parameter regions above the Gaussian PBH overproduction threshold emerges due to the enhancement of curvature perturbations on all scales. It should be possible to constrain realistic models of inflation through PBH overproduction although many issues, such as rescattering and non-Gaussianity, remain unsolved or unexplored.

Original languageEnglish
Article number123503
JournalPhysical Review D
Issue number12
Publication statusPublished - 2001

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Inflationary preheating and primordial black holes'. Together they form a unique fingerprint.

  • Cite this