90 citations · 157 across the 2 of their papers we have counts for
2 papers
gr-qc2018★ 67 cited
Hamiltonian vs stability and application to Horndeski theory
Eugeny Babichev, Christos Charmousis, Gilles Esposito-Farese +1
A Hamiltonian density bounded from below implies that the lowest-energy state is stable. We point out, contrary to common lore, that an unbounded Hamiltonian density does not neces…
gr-qc2017★ 90 cited
Stability of a black hole and the speed of gravity waves within self-tuning cosmological models
Eugeny Babichev, Christos Charmousis, Gilles Esposito-Farese +1
The gravitational wave event GW170817 together with its electromagnetic counterparts constrains the speed of gravity to be extremely close to that of light. We first show, on the e…