Seminarium "Teoria cząstek elementarnych i kosmologia"
sala 1.01, ul. Pasteura 5
2019-04-25 (12:15) 
Michał Wieczorek (IFT UW)
Instabilities and nonlinear interactions of scalar fields perturbations in models of cosmological inflation
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.