PIRSA:11100001 Scientific Series Cosmology

DOI10.48660/11100001

Series: Cosmology and Gravitation

Sorbo, L. (2011). Nonstandard Tensor Modes from Inflation . Perimeter Institute. https://pirsa.org/11100001

Sorbo, Lorenzo. Nonstandard Tensor Modes from Inflation . Perimeter Institute, Oct. 25, 2011, https://pirsa.org/11100001 

@misc{ pirsa_PIRSA:11100001,
  doi = {10.48660/11100001},
  url = {https://pirsa.org/11100001},
  author = {Sorbo, Lorenzo},
  keywords = {Cosmology},
  language = {en},
  title = {Nonstandard Tensor Modes from Inflation },
  publisher = {Perimeter Institute},
  year = {2011},
  month = {oct},
  note = {PIRSA:11100001 see, \url{https://pirsa.org}}
}

Abstract

Several mechanisms can lead to production of particles during inflation. I discuss how this phenomenon can induce a contribution to the primordial spectrum of gravitational waves with unusual properties: the tensors produced this way can violate parity; can have a large three-point function; can have a relatively large tensor-to-scalar ratio even if inflation occurs at low energies; finally, their spectrum can display a feature that can be directly detected by second-generation gravitational interferometers such as advanced LIGO.

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