Non-perturbative wavefunction of the universe in inflation with (resonant) features

Abstract We study the statistics of scalar perturbations in models of inflation with small and rapid oscillations in the inflaton potential (resonant non-Gaussianity). We do so by deriving the wavefunction Ψ[ζ(x)] non-perturbatively in ζ, but at first order in the amplitude of the oscillations. The...

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Bibliographic Details
Main Authors: Paolo Creminelli, Sébastien Renaux-Petel, Giovanni Tambalo, Vicharit Yingcharoenrat
Format: Article
Language:English
Published: SpringerOpen 2024-03-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP03(2024)010