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PIRSA:16110071

Video URL

https://pirsa.org/16110071

Productive interactions: heavy particles, gravitational waves and non-Gaussianity

Mirbabayi, M. (2016). Productive interactions: heavy particles, gravitational waves and non-Gaussianity. Perimeter Institute for Theoretical Physics. https://pirsa.org/16110071

Mehrdad Mirbabayi Institute for Advanced Study (IAS)

Talk numberPIRSA:16110071
DOI10.48660/16110071
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

I discuss the phenomenology of models of inflation with periodic particle production. Particle production occurs as the mass of heavy particles goes through non-adiabatic modulations as the inflaton field rolls. I show that this process can lead to significant emission of scalar and gravitational waves during inflation, with distinct observational signatures.