158 citations · 2.6k across the 106 of their papers we have counts for
11 papers · 1 filter
Cosmology in gravity models with broken diffeomorphisms
Antonio G. Bello-Morales, Antonio L. Maroto
We study the cosmological implications of gravity models which break diffeomorphisms (Diff) invariance down to transverse diffeomorphisms (TDiff). We start from the most general gr…
TDiff in the Dark: Gravity with a scalar field invariant under transverse diffeomorphisms
Darío Jaramillo-Garrido, Antonio L. Maroto, Prado Martín-Moruno
We reflect on the possibility of having a matter action that is invariant only under transverse diffeomorphisms. This possibility is particularly interesting for the dark sector, w…
TDiff invariant field theories for cosmology
Antonio L. Maroto
We study scalar field theories invariant under transverse diffeomorphisms in cosmological contexts. We show that in the geometric optics approximation, the corresponding particles…
Vector dark radiation and gravitational-wave polarization
Alfredo D. Miravet, Antonio L. Maroto
We consider conformal vector models which could play the role of a cosmological dark radiation component. We analyse the propagation of gravitational waves in the presence of this…
Parametrizing modified gravities with vector degrees of freedom: anisotropic growth and lensing
Miguel Aparicio Resco, Antonio L. Maroto
We consider the problem of parametrizing modified gravity theories that include an additional vector field in the sub-Hubble regime within the quasi-static approximation. We start…
Cosmology with moving bimetric fluids
Carlos García-García, Antonio L. Maroto, Prado Martín-Moruno
We study cosmological implications of bigravity and massive gravity solutions with non-simultaneously diagonal metrics by considering the generalized Gordon and Kerr-Schild ansatze…