Speaker
Matteo Fasiello
(IFT Madrid)
Description
I will review the mechanism for primordial gravitational wave generation in axion-inflation models comprising a gauge sector coupled via a Chern-Simons term. I will survey both the Abelian and non-Abelian cases and provide details on the concrete possibility of primordial black hole production. I will elaborate on specific examples whose gravitational signal is detecteable by LISA.