Speaker
ANDER URIO
Description
Axion inflation is one of the leading models for a successful realization of the inflationary paradigm. I will address the issue of the strong backreaction regime in the abelian axion inflation scenario, extending results from 2303.17436 and ongoing work. I will do a revision of the mild and strong backreaction regimes, during and at the end of inflation, and also show how they can be distinguished in terms of dynamics and lengthening of the inflationary period, as well as, the helical imbalance. I will also highlight the ultraviolet sensitivity of the model in the case of larger couplings and the challenges it presents for the accurate capture of the dynamics.
Author
ANDER URIO
Co-authors
Daniel G. Figueroa
(Univ. of Valencia and CSIC (ES))
Joanes Lizarraga
(University of the Basque Country)
Jon Urrestilla
(University of the Basque Country)
