July 9, 2020 to January 31, 2025
Europe/Zurich timezone

Primordial non-Gaussianity beyond the bispectrum

Mar 7, 2023, 3:00 PM
1h 20m


Gonzalo Palma (Universidad de Chile)


I will review recent progress to address the generation of primordial non-Gaussianity during cosmic inflation. I will focus my attention on the origin of non-Gaussian signals that are poorly parametrized by the bispectrum (the three-point function). I will show that there are various types of non-Gaussianities that can arise during inflation that, to be understood, require taking into account a large set of n-point functions both, via perturbative or non-perturbative techniques. Such classes of non-Gaussianity may be crucial to understand the generation of primordial black holes.

Presentation materials