Speaker
Eemeli Tomberg
(UCLouvain)
Description
Inflationary models with an inflection point potential may produce a significant abundance of primordial black holes. I show that in typical models, inflation is eternal near the inflection point, that is, the volume of the inflating region diverges at late times. The inflating space then has a fractal structure, with eternal inflation taking place inside type II black holes. I discuss the implications for predicting cosmological observables in these models. In particular, eternal inflation challenges the models' CMB predictions, possibly making them incompatible with observations.
Author
Eemeli Tomberg
(UCLouvain)
