155 citations · 576 across the 10 of their papers we have counts for
3 papers · 1 filter
Gravitational waves in bigravity cosmology
Giulia Cusin, Ruth Durrer, Pietro Guarato +1
In this paper we study gravitational wave perturbations in a cosmological setting of bigravity which can reproduce the ΛCDM background and large scale structure. We show that in ge…
New Gravitational Scales in Cosmological Surveys
Tessa Baker, Pedro G. Ferreira, C. Danielle Leonard +1
In the quasistatic regime, generic modifications to gravity can give rise to novel scale-dependence of the gravitational field equations. Crucially, the detectability of the new sc…
Stable and unstable cosmological models in bimetric massive gravity
Frank Könnig, Yashar Akrami, Luca Amendola +2
Nonlinear, ghost-free massive gravity has two tensor fields; when both are dynamical, the mass of the graviton can lead to cosmic acceleration that agrees with background data, eve…