252 citations · 1.2k across the 15 of their papers we have counts for
7 papers · 1 filter
Hydrodynamical N-body simulations of coupled dark energy cosmologies
Marco Baldi, Valeria Pettorino, Georg Robbers +1
If the accelerated expansion of the Universe at the present epoch is driven by a dark energy scalar field, there may well be a non-trivial coupling between the dark energy and the…
Shifting the Universe: Early Dark Energy and Standard Rulers
Eric V. Linder, Georg Robbers
The presence of dark energy at high redshift influences both the cosmic sound horizon and the distance to last scattering of the cosmic microwave background. We demonstrate that th…
Neutrino clustering in growing neutrino quintessence
D. F. Mota, V. Pettorino, G. Robbers +1
A growing neutrino mass can stop the dynamical evolution of a dark energy scalar field, thus explaining the 'why now' problem. We show that such models lead to a substantial neutri…
Cosmological Backreaction from Perturbations
Juliane Behrend, Iain A. Brown, Georg Robbers
We reformulate the averaged Einstein equations in a form suitable for use with Newtonian gauge linear perturbation theory and track the size of the modifications to standard Robert…
Does Planck mass run on the cosmological horizon scale?
Georg Robbers, Niayesh Afshordi, Michael Doran
Einstein's theory of general relativity, which contains a universal value of the Planck mass, has been so far successfully invoked to explain gravitational dynamics from sub-millim…
Impact of three years of data from the Wilkinson Microwave Anisotropy Probe on cosmological models with dynamical dark energy
Michael Doran, Georg Robbers, Christof Wetterich
The first three years of observation of the Wilkinson Microwave Anisotropy Probe (WMAP) have provided the most precise data on the anisotropies of the cosmic microwave background (…