Inflationary preheating and primordial black holes
Journal Article
·
· Physical Review D
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.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40203086
- Journal Information:
- Physical Review D, Journal Name: Physical Review D Journal Issue: 12 Vol. 63; ISSN 0556-2821
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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