37 citations · 152 across the 15 of their papers we have counts for
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gr-qc2023★ 5 cited
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…
gr-qc2023★ 13 cited
Backreaction of scalar waves on black holes at low frequencies
Marco de Cesare, Roberto Oliveri
We study the accretion of a Schwarzschild black hole due to spherically symmetric perturbations sourced by a minimally coupled massless scalar field. The backreaction of the black…
gr-qc2023★ 6 cited
Generalized boundary conditions in closed cosmologies
David Brizuela, Marco de Cesare
Considering a generalization of the Gibbons-Hawking-York covariant boundary action that depends on both the extrinsic and the intrinsic geometry of the boundary, we derive boundary…