306 citations · 1.1k across the 39 of their papers we have counts for
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Parametrized post-Newtonian formalism in higher-order Teleparallel Gravity
Manuel Gonzalez-Espinoza, Giovanni Otalora, Lucila Kraiselburd +1
We study the parametrized post-Newtonian (PPN) limit of higher-derivative-torsion Modified Teleparallel Gravity. We start from the covariant formulation of modified Teleparallel Gr…
Inflation and Primordial Fluctuations in Gravity's Rainbow
Yoelsy Leyva, Carlos Leiva, Giovanni Otalora +1
We study slow-roll inflation and the generation of primordial fluctuations in gravity's rainbow. We obtain the second order action for scalar and tensor perturbations and th…
Chaotic Inflation and Reheating in Generalized Scalar-Tensor Gravity
Matías López, Giovanni Otalora, Nelson Videla
In the present work, we study slow-roll inflation in scalar-tensor gravity theories in the presence of both the non-minimal coupling between the scalar field and curvature, and the…
Reconstructing inflation in scalar-torsion gravity
Manuel Gonzalez-Espinoza, Ramón Herrera, Giovanni Otalora +1
It is investigated the reconstruction during the slow-roll inflation in the most general class of scalar-torsion theories whose Lagrangian density is an arbitrary function …
Stability of scalar perturbations in scalar-torsion gravity theories in the presence of a matter fluid
Manuel Gonzalez-Espinoza, Giovanni Otalora, Joel Saavedra
We study the viability conditions for the absence of ghost, gradient and tachyonic instabilities, in scalar-torsion gravity theories in the presence of a general barotropi…