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Publication
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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. (C) 2016 The Author(s). Published by Elsevier B.V.
Xavier Fernandez-Real Girona, Riccardo Tione
Matthieu Wyart, Thomas Willem Jan de Geus