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hep-th2026
Background-independent one-loop renormalization of tensor and scalar primordial spectra
Guillermo Ballesteros, Jesús Gambín Egea, Flavio Riccardi
We present a background-independent renormalization framework for one-loop primordial spectra. We apply it to two observables: the scalar-induced tensor spectrum sourced by a minim…
hep-th2026
Classical and quantum evolution of inflationary fluctuations
Guillermo Ballesteros, Jesús Gambín Egea, Alejandro Pérez Rodríguez
We compare the correlation functions of inflationary perturbations computed either with quantum or classical dynamics. Even if they are enforced to agree at a specific time during…