Seminarium "Teoria cząstek elementarnych i kosmologia"

During my talk I will present three closely related topics: 1) the occurrence of the effective self-resonance preheating in single field inflationary models, 2) the impact of spectators instability on preheating for alpha-attractor models of inflation, 3) the geometrical destabilization of inflation. I will present the results of the numerical lattice simulations which enabled the precise quantitative analysis of these problems.