345 citations · 2.7k across the 66 of their papers we have counts for
4 papers · 1 filter
Higgs Inflation with a Gauss-Bonnet term in the Jordan Frame
Carsten van de Bruck, Chris Longden
We consider an extension of Higgs inflation in which the Higgs field is coupled to the Gauss-Bonnet term. Working solely in the Jordan frame, we firstly recover the standard predic…
Disformally coupled inflation
Carsten van de Bruck, Tomi Koivisto, Chris Longden
A disformal coupling between two scalar fields is considered in the context of cosmological inflation. The coupling introduces novel derivative interactions mixing the kinetic term…
The variation of the fine-structure constant from disformal couplings
Carsten van de Bruck, Jurgen Mifsud, Nelson J. Nunes
We study a theory in which the electromagnetic field is disformally coupled to a scalar field, in addition to a usual non-minimal electromagnetic coupling. We show that disformal c…
The simplest extension of Starobinsky inflation
Carsten van de Bruck, Laura Elena Paduraru
We consider the simplest extension to the Starobinsky model, by allowing an extra scalar field to help drive inflation. We perform our analysis in the Einstein frame and calculate…