Skip to content

The bound r ≤ 16ε on the primordial tensor perturbation

David H. Lyth

astro-pharXiv:astro-ph/0508127

Abstract

I recall the well-known sufficient conditions for the bound r<16ε on the spectrum of the primordial tensor perturbation. Two recent papers claim a violation of this bound, without stating explicitely any violation of the sufficient conditions.

Create a lesson