85 citations · 440 across the 18 of their papers we have counts for
7 papers · 1 filter
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…
The Kepler problem in the Snyder space
Carlos Leiva, Joel Saavedra, J. R. Villanueva
In this paper we study the Kepler problem in the non commutative Snyder scenario. We characterize the deformations in the Poisson bracket algebra under a mimic procedure from quant…
Motion of charged particles on the Reissner-Nordström (Anti)-de Sitter black holes
M. Olivares, J. Saavedra, C. Leiva +1
In this work we address the study of movement of charged particles in the background of charged black holes with non-trivial asymptotic behavior. We compute the exact trajectories…
Effective Potential Structure of the BTZ Black Hole in Rainbow Gravity
Carlos Leiva, Ignacio Espinoza
In this paper we study the effective potential structure of the BTZ black hole in rainbow gravity for a massive and a massless particles.
Tachyonic Universes in Patch Cosmologies with
Sergio del Campo, Ramon Herrera, Pedro Labrana +2
In this article we study closed inflationary universe models by means of a tachyonic field. We described a general treatment for created a universe with in patch cosmology, w…
Geodesic Structure of the Schwarzschild Black Hole in Rainbow Gravity
Carlos Leiva, Joel Saavedra, Jose Villanueva
In this paper we study the geodesic structure of the Schwarzschild black hole in rainbow gravity analyzing the behavior of null and time-like geodesic. We find that the structure o…
Conformal Generators and Doubly Special Relativity Theories
Carlos Leiva
In this paper, the relation between the modified Lorenz boosts, proposed in the doubly relativity theories and a linear combination of Conformal Group generators in is…