Freezing of the renormalized one-loop primordial scalar power spectrum
Published: Apr 17, 2025
Last Updated: Apr 17, 2025
Authors:Matteo Braglia, Lucas Pinol
Abstract
By consistently using the effective field theory of inflationary fluctuations in the decoupling limit, we explicitly prove that the renormalized one-loop power spectrum of the primordial curvature perturbation freezes exactly on scales larger than its sound horizon.