491 citations · 6.8k across the 96 of their papers we have counts for
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Dressing a black hole with a time-dependent Galileon
Eugeny Babichev, Christos Charmousis
We present a class of exact scalar-tensor black holes for a shift-symmetric part of the Horndeski action. The action includes a higher order scalar tensor interaction term. We find…
Restoring General Relativity in massive bi-gravity theory
Eugeny Babichev, Marco Crisostomi
We study static spherically symmetric solutions of massive bi-gravity theory, free from the Boulware-Deser ghost. We show the recovery of General Relativity via the Vainshtein mech…
An introduction to the Vainshtein mechanism
Eugeny Babichev, Cedric Deffayet
We introduce the Vainshtein mechanism which plays a crucial role in massive gravities, as well as in related theories such as Galileons and their extensions. This mechanism, also k…
Instability of black holes in massive gravity
Eugeny Babichev, Alessandro Fabbri
We show that linear perturbations around the simplest black hole solution of massive bi-gravity theories, the bi-Schwarzschild solution, exhibit an unstable mode featuring the Greg…
Experimental constraints on the uncoupled Galileon model from SNLS3 data and other cosmological probes
J. Neveu, V. Ruhlmann-Kleider, A. Conley +4
The Galileon model is a modified gravity theory that may provide an explanation for the accelerated expansion of the Universe. This model does not suffer from instabilities or ghos…