Seminar

The equation of state after inflation

Sponsored by the Stanford Institute for Theoretical Physics

When

Monday, October 21, 2019
2:00 pm – 4:00 pm
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Where

Varian Physics - Room 355
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Contact via email
Contact via phone

650-723-4232

This event is open to:
Everyone

Admission
Free

Event Details:

Kaloian Lozanov of the Max Planck Institute for Astrophysics in Garching will give the Stanford Institute for Theoretical Physics (SITP) Monday Colloquium.

Abstract

I will talk about our works (arXiv:1608.01213, arXiv:1710.06851, arXiv:1902.06736) in which we calculate the equation of state of the inflaton field after inflation and provide an upper bound on the duration before radiation domination by taking the nonlinear dynamics of the fragmented inflaton field into account. For the models considered, I will discuss how our work significantly reduces the uncertainty in inflationary observables. I will also consider various aspects of the linear and nonlinear dynamics of the inflaton such as parametric self-resonance, the generation of scalar metric perturbations and gravitational waves. I will also review the recent progress in the understanding of the equation of state after inflation in models featuring non-minimal couplings and/or gauge bosons.