401 citations · 3k across the 54 of their papers we have counts for
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Tachyonic Encore: A universal shift of inflationary observables
Diogo S. Gorgulho, Margherita Putti, Rodrigo Gonzalez Quaglia +3
We propose a generic, largely inflaton-potential-independent mechanism in which a light axion spectator, initialized near the hilltop of its potential, reshapes inflationary observ…
Gravitational Axiverse Spectroscopy: Seeing the Forest for the Axions
Ema Dimastrogiovanni, Matteo Fasiello, Jacob M. Leedom +2
We consider inflationary models with multiple spectator axions coupled to dark gauge sectors via Chern-Simons (CS) terms. The energy injection into Abelian gauge fields from the ax…
Trispectrum from Co-dimension 2(n) Galileons
Matteo Fasiello
A generalized theory of multi-field galileons has been recently put forward. This model stems from the ongoing effort to embed generic galileon theories within brane constructions.…
Low-Energy Effective Field Theory for Chromo-Natural Inflation
Emanuela Dimastrogiovanni, Matteo Fasiello, Andrew J. Tolley
Chromo-natural inflation is a novel model of inflation which relies on the existence of non-abelian gauge fields interacting with an axion. In its simplest realization, an SU(2) ga…