4 papers
Effective speed approach for modified scalar field propagation
Kevin Restrepo Tobón, Antonio Enea Romano
We study the propagation of a constant-speed Gaussian scalar field wave packet (GWP) in Minkowski space, showing that the energy conditions are violated for superluminal speeds. We…
The effects of dark energy on the matter-gravity coupling
Antonio Enea Romano
Dark energy perturbations are expected to modify the evolution of cosmological perturbations, producing different observational effects. We show that these effects can be encoded i…
Testing the consistency of gravitational waves and large scale structure constraints on dark energy
Antonio Enea Romano, Juan Manuel Cardenas Mancipe
Gravitational wave (GW) astronomy has opened a new window on the Universe, allowing to obtain constraints on dark energy and gravity independent from other electromagnetic waves ob…
Multimessenger consistency relations bridging gravitational wave and large scale structure observations
Antonio Enea Romano
We show that for Horndeski theories it is possible to derive mathematically compact consistency relations (CR) between physically observable quantities, valid for different classes…