%0 Journal Article
%T Einstein-Gauss-Bonnet Gravity with Extra Dimensions
%A Carsten van de Bruck
%A Chris Longden
%J Galaxies | An Open Access Journal from MDPI
%D 2019
%R https://doi.org/10.3390/galaxies7010039
%X We consider a theory of modified gravity possessing d extra spatial dimensions with a maximally symmetric metric and a scale factor, whose ( 4 + d ) -dimensional gravitational action contains terms proportional to quadratic curvature scalars. Constructing the 4D effective field theory by dimensional reduction, we find that a special case of our action where the additional terms appear in the well-known Gauss-Bonnet combination is of special interest as it uniquely produces a Horndeski scalar-tensor theory in the 4D effective action. We further consider the possibility of achieving stabilised extra dimensions in this scenario, as a function of the number and curvature of extra dimensions, as well as the strength of the Gauss-Bonnet coupling. Further questions that remain to be answered such as the influence of matter-coupling are briefly discussed. View Full-Tex
%U https://www.mdpi.com/2075-4434/7/1/39