Source: wikibot/lyth-bound
= Lyth bound
{wiki=Lyth_bound}
The Lyth bound is a theoretical limit in cosmology related to the amount of scalar curvature perturbations produced during cosmic inflation. Specifically, it provides a relationship between the amplitude of the scalar perturbations, often quantified by the value of the tensor-to-scalar ratio \\( r \\) and the inflaton field's change in value during inflation.