23–26 Sept 2014
DESY Hamburg
Europe/Berlin timezone

On the relation between $f(R)$ and non minimally coupled scalar field theories.

25 Sept 2014, 16:10
15m
Seminar room 1 (DESY Hamburg)

Seminar room 1

DESY Hamburg

Notkestrasse 85, 22607 Hamburg

Speaker

Mr Mario Galante (Rijksuniversiteit Groningen)

Description

It is well known that the scalar degrees of freedom of a generic $f(R)$ theory could be recast in a field theory dual using a Weyl scaling of the metric. In this work, we explore how the RG-improved Higgs Inflation model could be seen as a corrected Starobinsky model, showing that the relation between this two models correspond not only to a tree level matching, but at least to a 1-loop level. We consider the running of $\lambda$, the Higgs coupling, and $\xi$, the non minimal coupling, and also we pay special attention to the corrections to the kinetic term, that at the end are shown to be exponentially damped at the inflationary regime.

Primary authors

Prof. Diederik Roest (Rijksuniversiteit Groningen) Prof. Juan García-Bellido (Universidad Autónoma de Madrid) Mr Mario Galante (Rijksuniversiteit Groningen)

Presentation materials