Dissipation in QFT and the Hot Big Bang

by Marco Drewes (U Louvain)

Monday 4 Nov 2019, 15:00 → 17:00 Europe/Berlin

SR2 (Bldg 2A)

We explore the role of thermal and quantum corrections to the effective potential and dissipation coefficients of scalar fields in a thermal bath in the perturbative regime. One motivation for this is the question whether dissipative effects can play a role during inflation, in particular in so-called warm inflation scenarios. A second motivation is a better understanding of cosmic reheating after inflation. As an application we discuss the possibility to constrain the inflaton coupling from cosmological data.

Slides DESY_Seminar_2019.pdf