PIRSA:16110071 Scientific Series Cosmology

DOI10.48660/16110071

Series: Cosmology and Gravitation

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

Mirbabayi, Mehrdad. Productive interactions: heavy particles, gravitational waves and non-Gaussianity. Perimeter Institute, Nov. 08, 2016, https://pirsa.org/16110071 

@misc{ pirsa_PIRSA:16110071,
  doi = {10.48660/16110071},
  url = {https://pirsa.org/16110071},
  author = {Mirbabayi, Mehrdad},
  keywords = {Cosmology},
  language = {en},
  title = {Productive interactions: heavy particles, gravitational waves and non-Gaussianity},
  publisher = {Perimeter Institute},
  year = {2016},
  month = {nov},
  note = {PIRSA:16110071 see, \url{https://pirsa.org}}
}

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.

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