Sébastien Renaux-Petel - Inflation beyond perturbation theory скачать в хорошем качестве

Sébastien Renaux-Petel - Inflation beyond perturbation theory

Abstract: The wavefunction of the universe contains the full information about primordial fluctuations. I will show how to determine it in a non-perturbative manner in a large class of inflationary scenarios, using the example of models with small and rapid oscillations in the inflaton potential. Our study reveals a profound asymmetry between maxima and minima of the density fluctuations, and indicates that even minute oscillations give large effects on the tail of the distribution. Eventually, I will describe a qualitatively new regime in which most of the information of inflationary correlators appears in higher-order correlation functions with large n.