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Simulations of the Dark Ages of Inflation 

08/29 2025 Seminar
  • Title Simulations of the Dark Ages of Inflation 
  • Speaker Sebastien Renaux-Petel (Institut d'astrophysique de Paris)
  • Date 10:30 AM, Aug. 29, 2025
  • Venue Lecture Hall 6620, South Building
  • Abstract

    Models of inflation relevant for small-scale gravitational-wave cosmology are often characterized by a high degree of inhomogeneity that requires going beyond perturbation theory. In this context, I will describe the simulations we have developed and applied to resonant inflation and ultra-slow-roll inflation, highlighting backreaction and non-Gaussian effects as well as consequences for primordial black holes.

    Biography

    Sebastien Renaux-Petel is a theoretical physicist specialized in primordial cosmology. He is a senior CNRS researcher at the Institut d'astrophysique de Paris and a professor at Ecole polytechnique. He held postdoctoral positions at Cambridge and Sorbonne University and he is the recipient of an ERC Starting Grant and of the CNRS bronze medal.

    Inviter: Shi Pi