23 citations · 68 across the 6 of their papers we have counts for
6 papers
Twinlike models for parametrized dark energy
J. D. Dantas, J. J. Rodrigues
We study cosmological models involving a single real scalar field that has an equation of state parameter which evolves with cosmic time. We highlight some common parametrizations…
Getting inflationary models using the deformation method
Jamilton Rodrigues, Marcos Souza
In this paper we show that the dynamics associated with slow-roll models of inflation can be investigated through a method called deformation procedure. Using the latter, we explic…
Quintessence and tachyon dark energy models with a constant equation of state parameter
P. P. Avelino, L. Losano, J. J. Rodrigues
In this work we determine the correspondence between quintessence and tachyon dark energy models with a constant dark energy equation of state parameter, . Although the evolut…
Impact of Lorentz violation on the dynamics of inflation
P. P. Avelino, D. Bazeia, L. Losano +2
This work deals with the dynamics of inflation in the context of a scalar-vector-tensor theory of gravity exhibiting spontaneous Lorentz violation at early times. We describe a fir…
First-order formalism for dark energy and dust
D. Bazeia, L. Losano, J. J. Rodrigues +1
This work deals with first-order formalism for dark energy and dust in standard cosmology, for models described by real scalar field in the presence of dust in spatially flat space…
First-order formalism for scalar field in cosmology
D. Bazeia, L. Losano, J. J. Rodrigues
We present a general procedure to solve the equations of motion for cosmological models driven by real scalar fields with first-order differential equations. The method seems to ha…