306 citations · 1.1k across the 39 of their papers we have counts for
4 papers · 1 filter
Screening fifth forces in scalar-vector-tensor theories
Manuel Gonzalez-Espinoza, Giovanni Otalora, Lucila Kraiselburd +1
We study a screening mechanism in the context of scalar-vector-tensor (SVT) theories. This screening mechanism is based on both the derivative self-interactions of the vector field…
Revisiting the dynamics of interacting vector-like dark energy
Carlos Rodriguez-Benites, Manuel Gonzalez-Espinoza, Giovanni Otalora +1
We revise the dynamics of interacting vector-like dark energy, a theoretical framework proposed to explain the accelerated expansion of the universe. By investigating the interacti…
Phase-space analysis of torsion-coupled dilatonic ghost condensate
Manuel Gonzalez-Espinoza, Giovanni Otalora, Yoelsy Leyva +1
We studied the cosmological dynamics of a dilatonic ghost condensate field as a source of dark energy, which is non-minimally coupled to gravity through torsion. We performed a det…
Constant-roll and primordial black holes in f(Q,T) gravity
K. El Bourakadi, M. Koussour, G. Otalora +2
In this study, we investigate the consequence of the constant-roll condition and examine the role of gravity in the cosmological inflation process. We analyze the inflatio…