401 citations · 2.3k across the 45 of their papers we have counts for
4 papers · 1 filter
Tracking our Universe to de Sitter by a Horndeski scalar
Cristiano Germani, Prado Martin-Moruno
Assuming both that our Universe is evolving into a de Sitter space and a vanishing cosmological constant, leaves only the option that the observed acceleration is provided by a "ki…
Stability in quadratic torsion theories
Teodor Borislavov Vasilev, Jose A. R. Cembranos, Jorge Gigante Valcarcel +1
We revisit the definition and some of the characteristics of quadratic theories of gravity with torsion. We start from the most general Lagrangian density quadratic in the curvatur…
A Review on the Cosmology of the de Sitter Horndeski Models
Nelson J. Nunes, Prado Martin-Moruno, Francisco S. N. Lobo
We review the most general scalar-tensor cosmological models with up to second-order derivatives in the field equations that have a fixed spatially flat de Sitter critical point in…
Classical and semi-classical energy conditions
Prado Martin-Moruno, Matt Visser
The standard energy conditions of classical general relativity are (mostly) linear in the stress-energy tensor, and have clear physical interpretations in terms of geodesic focussi…