HEP Theory Journal Club

Particle production during slow-roll inflation and quantum gravity

Vahid Kamali

Bu-Ali Sina & McGill

In this talk, I will review two important nearly separated ideas of particle production during slow-roll inflation. Warm inflation is the first idea introduced as an alternative to standard (cold) inflation mixing the slow-roll and reheating epochs. Chromo-Natural inflation is also a model of inflation with a Chern-Simons interaction between inflaton and SU(2) gauge fields with the sub-Planckian axion decay parameter “f”. It was discussed in the literature that these models are in the landscape of string theory. I will explain the possible connection between them and also the constraints of swampland and Trans-Planckian censorship conjectures on the parameters of these models.