May 16 – 17, 2019
University of Warsaw
Europe/Zurich timezone

Properties of the primordial power spectrum for PBH production

May 17, 2019, 2:00 PM
45m
2.62

2.62

Speaker

Ioannis Dalianis ( NTU Athens)

Description

I will discuss the properties of the primordial power spectrum so that PBHs are produced in accordance with the constraints coming from the CMB and BBN observables. I will mainly focus on the large wavenumbers of the power spectrum where, if there is a peak, PBH with sub-solar masses are generated. Then I will describe the scenario that the dark matter in the universe is comprised either of PBHs or the evaporation remnants of PBHs. I will present inflationary models that can trigger the PBH formation in the framework of α-attractors, introducing also an explicit example, that of a runaway inflationary model.

Presentation materials