48 citations · 450 across the 33 of their papers we have counts for
3 papers · 1 filter
Higher-order modified Starobinsky inflation
R. R. Cuzinatto, L. G. Medeiros, P. J. Pompeia
An extension of the Starobinsky model is proposed. Besides the usual Starobinsky Lagrangian, a term proportional to the derivative of the scalar curvature, , is…
theories of gravity in Einstein frame: A higher order modified Starobinsky inflation model in the Palatini approach
R. R. Cuzinatto, C. A. M. de Melo, L. G. Medeiros +1
In Cuzinatto et al. [Phys. Rev. D 93, 124034 (2016)], it has been demonstrated that theories of gravity in which the Lagrangian includes terms depending on the scalar curvature …
Analytic Study of Cosmological Perturbations in a Unified Model of Dark Matter and Dark Energy with a Sharp Transition
Rodrigo R. Cuzinatto, Léo G. Medeiros, Eduardo M. de Morais +1
We study cosmological perturbations in a model of unified dark matter and dark energy with a sharp transition in the late-time universe. The dark sector is described by a dark flui…