156 citations · 1.3k across the 48 of their papers we have counts for
31 papers · 1 filter
Thermodynamics of 2+1 dimensional Coulomb-Like Black Holes from Non Linear Electrodynamics with a traceless energy momentum tensor
Mauricio Cataldo, P. A. González, Joel Saavedra +2
In this work we study thermodynamics of 2+1-dimensional static black holes with a nonlinear electric field. Besides employing the standard thermodynamic approach, we investigate th…
Modelling the current accelerated expansion of the Universe with Holographic Dark Energy
Carlos Rodriguez-Benites, Mauricio Cataldo, Antonella Cid +1
In this work we explore a Holographic Dark Energy Model in a flat Friedmann-Lemaître-Robertson-Walker Universe, which contains baryons, radiation, cold dark matter and dark energy…
The Hubble IR cutoff in holographic ellipsoidal cosmologies
Mauricio Cataldo, Norman Cruz
It is well known that for spatially flat FRW cosmologies, the holographic dark energy disfavours the Hubble parameter as a candidate for the IR cutoff. For overcoming this problem,…
Static phantom wormholes of finite size
Mauricio Cataldo, Fabian Orellana
In this paper we derive new static phantom traversable wormholes by assuming a shape function with a quadratic dependence on the radial coordinate r. We mainly focus our study on w…
Finite time future singularities in the interacting dark sector
Mauricio Cataldo, Luis P. Chimento, Martín G. Richarte
We construct a piecewise model that gives a physical viable realization of finite-time future singularity for a spatially flat Friedmann-Robertson-Walker universe within the intera…
Static spherically symmetric wormholes with isotropic pressure
Mauricio Cataldo, Luis Liempi, Pablo Rodríguez
In this paper we study static spherically symmetric wormhole solutions sustained by matter sources with isotropic pressure. We show that such spherical wormholes do not exist in th…
Morris-Thorne wormholes in static pseudo-spherically symmetric spacetimes
Mauricio Cataldo, Luis Liempi, Pablo Rodriguez
In this paper we study classical general relativistic static wormhole configurations with pseudo-spherical symmetry. We show that in addition to the hyperbolic wormhole solutions d…
Cosmic anisotropic doomsday in Bianchi type I universes
Mauricio Cataldo, Antonella Cid, Pedro Labraña +1
In order to investigate if the anisotropy of the spacetime may induce future singularities at a finite value of the cosmic time on the evolution of cosmological models, we study va…
Radiation in (2+1)-dimensions
Mauricio Cataldo, Alberto A. García
In this paper we discuss the radiation equation of state in (2+1)-dimensions. In (3+1)-dimensions the equation of state may be used to describe either actual electr…
Accelerated FRW Solutions in Chern-Simons Gravity
Juan Crisostomo, Fernando Gomez, Patricio Salgado +3
We consider a five-dimensional Einstein-Chern-Simons action which is composed of a gravitational sector and a sector of matter, where the gravitational sector is given by a Chern-S…
Friedmann-Robertson-Walker like cosmologies with spherical symmetry
Mauricio Cataldo, Fernanda Arostica, Sebastian Bahamonde
We reconsider the cosmological model discussed by Sung-Won Kim [Phys. Rev D 53, 6889 (1996)] in the context of Friedmann-Robertson-Walker cosmologies with a traversable wormhole, w…
(N+1)-dimensional Lorentzian evolving wormholes supported by polytropic matter
Mauricio Cataldo, Sebastian Bahamonde, Fernanda Arostica
In this paper we study -dimensional evolving wormholes supported by energy satisfying a polytropic equation of state. The considered evolving wormhole models are described b…
Phantom evolving wormholes with big rip singularities
Mauricio Cataldo, Paola Meza
We investigate a family of inhomogeneous and anisotropic gravitational fields exhibiting a future singularity at a finite value of the proper time. The studied spherically symmetri…
Canonical and phantom scalar fields as an interaction of two perfect fluids
Mauricio Cataldo, Fabiola Arevalo, Patricio Mella
In this article we investigate and develop specific aspects of Friedmann-Robertson-Walker (FRW) scalar field cosmologies related to the interpretation that canonical and phantom sc…
Two-fluid evolving Lorentzian wormholes
Mauricio Cataldo, Sergio del Campo
We investigate the evolution of a family of wormholes sustained by two matter components: one with homogeneous and isotropic properties and another inhomogeneous and anisotr…
N-dimensional static and evolving Lorentzian wormholes with cosmological constant
Mauricio Cataldo, Paola Meza, Paul Minning
We present a family of static and evolving spherically symmetric Lorentzian wormhole solutions in N+1 dimensional Einstein gravity. In general, for static wormholes, we require tha…
Interacting Kasner-type cosmologies
Mauricio Cataldo, Fabiola Arevalo, Patricio Mella
It is well known that Kasner-type cosmologies provide a useful framework for analyzing the three-dimensional anisotropic expansion because of the simplification of the anisotropic…
Evolving Lorentzian wormholes supported by phantom matter and cosmological constant
Mauricio Cataldo, Sergio del Campo, Paul Minning +1
In this paper we study the possibility of sustaining an evolving wormhole via exotic matter made of phantom energy in the presence of a cosmological constant. We derive analytical…
Evolving Lorentzian wormholes supported by phantom matter with constant state parameters
Mauricio Cataldo, Pedro Labrana, Sergio del Campo +2
In this paper we study the possibility of sustaining an evolving wormhole via exotic matter made out of phantom energy. We show that this exotic source can support the existence of…
Form invariant transformations between n-- and m-- dimensional flat Friedmann--Robertson--Walker cosmologies
Mauricio Cataldo, Luis P. Chimento
We illustrate how the group of symmetry transformations, which preserve the form of the n--dimensional flat Friedmann--Robertson--Walker cosmologies satisfying Einstein equations,…
Curvature in causal BD-type inflationary cosmology
Francisco Pena, Mauricio Cataldo, Sergio del Campo
We study a closed model of the universe filled with viscous fluid and quintessence matter components in a Brans-Dicke type cosmological model. The dynamical equations imply that th…
Higher dimensional gravity invariant under the Poincare group
P. Salgado, M. Cataldo, S. del Campo
It is shown that the Stelle-West Grignani-Nardelli-formalism allows, both when odd dimensions and when even dimensions are considered, constructing actions for higher dimensional g…
Azimuthal electric field in a static rotationally symmetric (2+1)-dimensional spacetime
Mauricio Cataldo
The fundamental metrics, which describe any static three-dimensional Einstein-Maxwell spacetime (depending only on a unique spacelike coordinate), are found. In this case there are…
Supergravity and the Poincare group
P. Salgado, M. Cataldo, S. del Campo
An action for 3+1-dimensional supergravity genuinely invariant under the Poincare supergroup is proposed. The construction of the action is carried out considering a bosonic lagran…