Speaker
Description
In the coming years, the search for primordial gravitational waves will combine direct detection with space-based observatories and measurements of Cosmic Microwave Background B-mode polarization. Accurately interpreting these measurements depends heavily on understanding their production mechanisms. A particularly compelling scenario involves gravitational wave generation through the interaction of an axion with gauge fields during inflation. I will present recent advances in axion inflation with non-Abelian gauge fields, focusing on the signatures in the primordial gravitational wave background and their correlation with primordial magnetic fields. I will also discuss how the emergence of a primordial plasma via the Schwinger effect alters the early universe dynamics, modifying both the gravitational wave signal and primordial magnetic field predictions.