158 citations · 2.6k across the 106 of their papers we have counts for
108 papers
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…
Gravitational leptogenesis from metric perturbations
Antonio L. Maroto, Alfredo D. Miravet
In this work we make the observation that the gravitational leptogenesis mechanism can be implemented without invoking new axial couplings in the inflaton sector. We show that in t…
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…
J-PAS: Forecasts for dark matter - dark energy elastic couplings
David Figueruelo, Miguel Aparicio Resco, Florencia A. Teppa Pannia +21
We consider a cosmological model where dark matter and dark energy feature a coupling that only affects their momentum transfer in the corresponding Euler equations. We perform a f…