85 citations · 791 across the 43 of their papers we have counts for
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Massive neutral particles on heterotic string theory
Marco Olivares, J. R. Villanueva
The motion of massive particles in the background of a charged black hole in heterotic string theory, which is characterized by a parameter , is studied in detail in this paper.…
About the coordinate time for photons in Lifshitz Space-times
J. R. Villanueva, Yerko Vásquez
In this paper we studied the behavior of radial photons from the point of view of the coordinate time in (asymptotically) Lifshitz space-times, and we found a generalization to the…
Geodesic Structure of Lifshitz Black Holes in 2+1 Dimensions
Norman Cruz, Marco Olivares, J. R. Villanueva
We present a study of the geodesic equations of a black hole space-time which is a solution of the three-dimensional NMG theory and is asymptotically Lifshitz with and …
Semi-holographic model revisited
Víctor H. Cárdenas, J. R. Villanueva, Juan Magaña
In a recent work Zhang, Li and Noh [Phys. Lett. B {\bf 694}, 177 (2010)]proposed a model for dark energy assuming this component strictly obeys the holographic principle. They perf…
On the Null Trajectories in Conformal Weyl Gravity
J. R. Villanueva, Marco Olivares
In this work we find analytical solutions to the null geodesics around a black hole in the conformal Weyl gravity. Exact expressions for the horizons are found, and they depend on…
Motion of particles on a Lifshitz black hole in 3+1 dimensions
Marco Olivares, Yerko Vásquez, J. R. Villanueva +1
We study the geodesic structure of a Lifshitz black hole in 3+1 spacetime dimensions that is an exact solution to the Einstein-scalar-Maxwell theory. We investigate the motio…