Gravitational waves and large field inflation

  title={Gravitational waves and large field inflation},
  author={Andrei Linde},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
  • Andrei Linde
  • Published 30 November 2016
  • Physics
  • arXiv: Cosmology and Nongalactic Astrophysics
According to the famous Lyth bound, one can confirm large field inflation by finding tensor modes with sufficiently large tensor-to-scalar ratio $r$. Here we will try to answer two related questions: Is it possible to rule out all large field inflationary models by not finding tensor modes with $r$ above some critical value, and what can we say about the scale of inflation by measuring $r$? However, in order to answer these questions one should distinguish between two different definitions of… Expand

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