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astro-ph.CO2025
Freezing of the renormalized one-loop primordial scalar power spectrum
Matteo Braglia, Lucas Pinol
The predictive power of cosmic inflation hinges on the existence of a conserved quantity at very large scales, called the primordial curvature perturbation, which is therefore inse…
astro-ph.CO2025
One-loop renormalization of the effective field theory of inflationary fluctuations from gravitational interactions
Matteo Braglia, Lucas Pinol
We dig into the semi-classical description of gravity by studying one-loop corrections to primordial power spectra generated during cosmic inflation from gravitational nonlinear in…