242 citations · 440 across the 12 of their papers we have counts for
7 papers · 1 filter
Distance-duality in theories with a nonminimal coupling to gravity
R. P. L. Azevedo, P. P. Avelino
We show that gravitational theories with a nonminimal coupling (NMC) to the matter fields lead to a violation of Etherington's distance-duality relation, which relates the luminosi…
Reply to note on "Boltzmann's H-theorem, entropy and the strength of gravity in theories with a nonminimal coupling between matter and geometry"
P. P. Avelino
In this brief reply we respond to the note of Bertolami and Gomes (arXiv:2005.03968) on our recent paper (arXiv:2003.10154).
Boltzmann's -theorem, entropy and the strength of gravity in theories with a nonminimal coupling between matter and geometry
P. P. Avelino, R. P. L. Azevedo
In this paper we demonstrate that Boltzmann's -theorem does not necessarily hold in the context of theories of gravity with nonminimally coupled matter fields. We find sufficien…
Big-bang nucleosynthesis and cosmic microwave background constraints on non-minimally coupled theories of gravity
R. P. L. Azevedo, P. P. Avelino
In this paper we show that the baryon-to-photon ratio is in general not conserved before decoupling in non-minimally coupled theories of gravity. We use big-bang nucleosynthesi…
Perfect fluid Lagrangian and its cosmological implications in theories of gravity with nonminimally coupled matter fields
P. P. Avelino, R. P. L. Azevedo
In this paper we show that the on-shell Lagrangian of a perfect fluid depends on microscopic properties of the fluid, giving specific examples of perfect fluids with different on-s…
Cosmological dynamics of a class of non-minimally coupled models of gravity
R. P. L. Azevedo, J. Páramos
In this work a new non-minimally coupled model is presented, where a generic function of the scalar curvature factors the usual Einstein-Hilbert action functional, motivated…