5 citations · 6 across the 3 of their papers we have counts for
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Gravitational wave propagation in bigravity in the late universe
David Brizuela, Marco de Cesare, Araceli Soler Oficial
We carry out a detailed analytical investigation of the propagation of gravitational waves in ghost-free bimetric gravity in a late-time de Sitter epoch. In this regime, the dynami…
Perturbations of bimetric gravity on most general spherically symmetric spacetimes
David Brizuela, Marco de Cesare, Araceli Soler Oficial
We present a formalism to study linear perturbations of bimetric gravity on any spherically symmetric background, including dynamical spacetimes. The setup is based on the Gerlach-…
Gravitational wave oscillations in bimetric cosmology
David Brizuela, Marco de Cesare, Araceli Soler Oficial
Unlike general relativity, in bimetric gravity linear gravitational waves do not evolve as free fields. In this theory there are two types of tensor perturbations, whose interactio…