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- Pontificia Universidad Católica de ValparaísoCL25 papers
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11 papers · 1 filter
Dirac quasinormal modes for a 4-dimensional Lifshitz Black Hole
Marcela Catalan, Eduardo Cisternas, P. A. Gonzalez +1
We study the quasinormal modes of fermionic perturbations for an asymptotically Lifshitz black hole in 4-dimensions with dynamical exponent z=2 and plane topology for the transvers…
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…
Four-Dimensional Asymptotically AdS Black Holes with Scalar Hair
P. A. Gonzalez, Eleftherios Papantonopoulos, Joel Saavedra +1
We present a new family of asymptotically AdS four-dimensional black hole solutions with scalar hair of a gravitating system consisting of a scalar field minimally coupled to gravi…
DGP Cosmological model with generalized Ricci dark energy
Yeremy Aguilera, Arturo Avelino, Norman Cruz +2
The braneworld model proposed by Dvali, Gabadadze and Porrati (DGP) leads to an accelerated universe without cosmological constant or other form of dark energy for the positive bra…
Interacting Ricci-like holographic dark energy
F. Arevalo, P. Cifuentes, S. Lepe +1
In a flat Friedmann-Lemaître-Robertson-Walker background, a scheme of dark matter-dark energy interaction is studied considering a holographic Ricci-like model for the dark energy.…
Dirac quasinormal modes of Chern-Simons and BTZ black holes with torsion
Ramon Becar, P. A. Gonzalez, Y. Vasquez
We study Chern-Simons black holes in d-dimensions and we calculate analytically the quasinormal modes of fermionic perturbations. Also, we consider as background the five-dimension…