The bound $r \leq 16ε$ on the primordial tensor perturbation

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/9471I 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.2 pagesAstrophysicsThe bound $r \leq 16ε$ on the primordial tensor perturbationtext