On the geometrical interpretation of scale-invariant models of inflation
arXiv:1606.08848 · doi:10.1016/j.physletb.2016.08.037
Abstract
We study the geometrical properties of scale-invariant two-field models of inflation. In particular, we show that when the field-derivative space in the Einstein frame is maximally symmetric during inflation, the inflationary predictions can be universal and independent of the details of the theory.
14 pages, no figures