Jul 5 – 12, 2017
Venice, Italy
Europe/Zurich timezone
Get the schedule and slides on your phone/tablet using the Conference4me app

Inflation with dissipation and metastability

Jul 7, 2017, 9:45 AM
Room Martinelli (Palazzo del Casinò)

Room Martinelli

Palazzo del Casinò

Parallel Talk Cosmology, Dark Energy, Gravitational Waves Cosmology, dark energy, gravitational waves


Dr Alessio Notari (Universitat de Barcelona)


We analyze two models in which primordial inflation has non-standard features. In the first model we study the evolution of a system in which the inflaton is slowed down by dissipation of energy into gauge bosons instead of the usual Hubble friction: in particular we study the conditions of the onset of such a scenario from a static field configuration and we briefly mention some difficulties of the treatment of perturbations. In the second model we consider the case of a metastable vacuum which sources exponential inflation and we show that the presence of scalar-tensor gravity can induce a power-law expansion which allows successful tunneling. We also analyze the case in which such a metastable vacuum might be in the Standard Model Higgs potential.

Primary author

Dr Alessio Notari (Universitat de Barcelona)

Presentation materials