On the geometrical interpretation of scale-invariant models of inflation

Karananas, Georgios K.Rubio, Javier2017-02-172017-02-172017-02-17201610.1016/j.physletb.2016.08.037https://infoscience.epfl.ch/handle/20.500.14299/134623WOS:000384469900033We 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. (C) 2016 The Author(s). Published by Elsevier B.V.On the geometrical interpretation of scale-invariant models of inflationtext::journal::journal article::research article