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Sep 27 – 30, 2016
DESY Hamburg
Europe/Berlin timezone

Scale-invariant models of inflation: a geometrical interpretation

Sep 29, 2016, 4:05 PM
Seminar room 2 (DESY Hamburg)

Seminar room 2

DESY Hamburg

Notkestrasse 85, 22607 Hamburg
Cosmology & Astroparticle Physics Parallel Session: Cosmology & Astroparticle Physics


Dr Javier Rubio (ITP Heidelberg)


I will describe how the geometrical properties of the target manifold affect the inflationary predictions of two-field scalar-tensor theories invariant under dilatations. The results presented extend the predictions of the Higgs-dilaton model to a full class of theories defined by an underlying principle. In particular, I will show that when the field-derivative space in the Einstein frame is maximally symmetric during inflation, the inflationary predictions are universal and independent of the details of the theory.

Primary author

Dr Javier Rubio (ITP Heidelberg)

Presentation materials