25 citations · 59 across the 5 of their papers we have counts for
5 papers
Records from the S-Matrix Marathon: Observables in Expanding Universes
Paolo Benincasa, Mathieu Giroux, Holmfridur S. Hannesdottir +3
Observables in expanding universes are crucial to understand the physics of the early universe. In these lectures, we review some recent progress in understanding their mathematica…
On one-loop corrections to the Bunch-Davies wavefunction of the universe
Paolo Benincasa, Giacomo Brunello, Manoj K. Mandal +2
Understanding the loop corrections to cosmological observables is of paramount importance for having control on the quantum consistency of a theory in an expanding universe as well…
Cosmological Infrared Subtractions & Infrared-Safe Computables
Paolo Benincasa, Francisco Vazão
Cosmological observables in perturbation theory turn out to be plagued with infrared divergences, which represents both a conceptual and computational challenge. In this paper we p…
The Asymptotic Structure of Cosmological Integrals
Paolo Benincasa, Francisco Vazão
We provide a general analysis of the asymptotic behaviour of perturbative contributions to observables in arbitrary power-law FRW cosmologies, indistinctly the Bunch-Davies wavefun…
The Geometry of Cosmological Correlators
Paolo Benincasa, Gabriele Dian
We provide a first principle definition of cosmological correlation functions for a large class of scalar toy models in arbitrary FRW cosmologies, in terms of novel geometries we n…