401 citations · 3.5k across the 58 of their papers we have counts for
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Kinetic Gauge Friction in Natural Inflation
Martino Michelotti, Rodrigo Gonzalez Quaglia, Ema Dimastrogiovanni +2
We study an extension of the natural inflation model comprising a non-Abelian gauge sector coupled to the axion-inflaton kinetic term. We show how such non-minimal coupling serves…
A universal constraint on axion non-Abelian dynamics during inflation
Ema Dimastrogiovanni, Matteo Fasiello, Martino Michelotti +1
Inflationary models equipped with Chern-Simons coupling between their axion and gauge sectors exhibit an array of interesting signals including a testable chiral gravitational wave…
A novel PBH production mechanism from non-Abelian gauge fields during inflation
Ema Dimastrogiovanni, Matteo Fasiello, Alexandros Papageorgiou
We consider the case of axion-like particles (ALPs) during inflation. When coupled to a non-Abelian gauge sector via a Chern-Simons term, ALPs support an intriguing, testable, phen…