Corpus ID: 218665390

A glimpse of pre-inflationary dynamics in tensor-to-scalar ratio.

  title={A glimpse of pre-inflationary dynamics in tensor-to-scalar ratio.},
  author={Suratna Das},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
  • Suratna Das
  • Published 2020
  • Physics
  • arXiv: Cosmology and Nongalactic Astrophysics
  • Pre-inflationary dynamics is known to have left observable imprints via the varied dynamics of the inflaton and the graviton fields during those epochs. It is highlighted here that other particle degrees of freedom, too, are capable of leaving their imprints on primordial observables if they transfer their entropies upon annihilation after becoming non-relativistic during a pre-inflationary epoch. Such annihilations of other particles would result in lowering of the tensor-to-scalar ratio at… CONTINUE READING