Messengers of the very early universe: Gravitational Waves and Primordial Black Holes

Session

13th morning session

13 Dec 2022, 09:30

Sala Grande (Centro Universitario Padovano)

60. Primordial non-Gaussianity (PNG), Primordial Black Holes (PBH) and Gravitational waves (GWs)

Caner Unal

13/12/2022, 09:30

Invited Talk

I will discuss the effects of PNG on PBH abundance and scalar induced GWs. I will also touch on a viable model of axion inflation (coupled with gauge fields) and probes of small scales via mu distortions and GWs at PTA.

78. Lattice simulations of axion-U(1) inflation

Angelo Caravano (LMU Munich)

13/12/2022, 10:00

Invited Talk

I present the first nonlinear lattice simulation of an axion field coupled to a U(1) gauge field during inflation. The simulation allows to fully characterize the statistics of the primordial curvature perturbation. We find high-order statistics to be essential in describing non-Gaussianity in the linear regime of the theory. On the contrary, non-Gaussianity is suppressed when the dynamics...

58. TBD

TBD

Invited Talk

59. TBD

TBD

Invited Talk