Quasi scale invariance and inflation

by Dr Antonio Racioppi (Tallin University)

Monday 19 Sept 2016, 14:00 → 15:00 Europe/Rome

Aula Teorici (Dipartimento di Fisica e Astronomia)

Classical scale invariance was applied to inflationary model building already from the very first papers. Recently the use of dynamically induced inflaton potentials à la Coleman-Weinberg became again fashionable. In the light of this, we study different applications of classical scale invariance to inflation. Depending on whether classical scale invariance is a property of the full action or just of scalar potential, we consider three different realizations of Coleman-Weinberg inflation in presence of a non-minimal coupling of the inflaton to gravity. For each realization, we present the most relevant inflationary predictions and distinctive features.