314 citations · 783 across the 12 of their papers we have counts for
5 papers · 1 filter
Chameleon Dark Energy
Ph. Brax, C. van de Bruck, A. C. Davis +2
Chameleons are scalar fields whose mass depends on the environment, specifically on the ambient matter density. While nearly massless in the cosmos, where the matter density is tin…
Cosmological Perturbations During Radion Stabilization
P. R. Ashcroft, C. van de Bruck, A. -C. Davis
We consider the evolution of cosmological perturbations during radion stabilization, which we assume to happen after a period of inflation in the early universe. Concentrating on t…
Detecting Dark Energy in Orbit -- the Cosmological Chameleon
Philippe Brax, Carsten van de Bruck, Anne-Christine Davis +2
We show that the chameleon scalar field can drive the current phase of cosmic acceleration for a large class of scalar potentials that are also consistent with local tests of gravi…
Brane World Cosmology
Philippe Brax, Carsten van de Bruck, Anne--Christine Davis
Recent developments in the physics of extra dimensions have opened up new avenues to test such theories. We review cosmological aspects of brane world scenarios such as the Randall…
On the spherical collapse model in dark energy cosmologies
D. F. Mota, C. van de Bruck
We study the spherical collapse model in dark energy cosmologies, in which dark energy is modelled as a minimally coupled scalar field. We first follow the standard assumption that…