60 citations · 94 across the 11 of their papers we have counts for
11 papers
A Dynamical-Time Framework for the Dynamics of Charged Particles
Zui Oporto, Gonzalo Marcelo Ramírez-Ávila
We present a dynamical framework for modeling the motion of point-like charged particles, with or without mass, in general external electromagnetic fields. A key feature of this fo…
Thermodynamical and dynamical stability of Einstein-Maxwell and extremal Einstein-Born-Infeld thin shells in dimensions
Dario Olmos Cayo, Zui Oporto Almaraz, M. L. Peñafiel
We study the dynamical and thermodynamical stability of thin shells in (2+1)-dimensional spacetimes composed of an inner anti-de Sitter (AdS) region and an outer region described b…
Quantum Charged Spinning Massless Particles in 2+1 dimensions
Ivan Morales, Bruno Neves, Zui Oporto +1
Motivated by the conduction properties of graphene discovered and studied in the last decades, we consider the quantum dynamics of a massless, charged, spin 1/2 relativistic partic…
Behaviour of Charged Spinning Massless Particles
Ivan Morales, Bruno Neves, Zui Oporto +1
We revisit the classical theory of a relativistic massless charged point particle with spin and interacting with an external electromagnetic field. In particular, we give a proper…
Chern-Simons Gravity in Four Dimensions
Ivan Morales, Bruno Neves, Zui Oporto +1
Five dimensional Chern-Simons theory with (anti-)de Sitter SO(1,5) or SO(2,4) gauge invariance presents an alternative to General Relativity with cosmological constant. We consider…
Dimensionally compactified Chern-Simon theory in 5D as a gravitation theory in 4D
Ivan Morales, Bruno Neves, Zui Oporto +1
We propose a gravitation theory in 4 dimensional space-time obtained by compacting to 4 dimensions the five dimensional topological Chern-Simons theory with the gauge group SO(1,5)…
A Topological-like Model for Gravity in 4D Space-time
Ivan Morales, Bruno Neves, Zui Oporto +1
In this paper we consider a model for gravity in 4-dimensional space-time originally proposed by Chamseddine, which may be derived by dimensional reduction and truncation from a 5-…
Loop Quantization of a Model for D=1+2 (Anti)de Sitter Gravity Coupled to Topological Matter
Clisthenis P. Constantinidis, Zui Oporto, Olivier Piguet
We present a complete quantization of Lorentzian D=1+2 gravity with cosmological constant, coupled to a set of topological matter fields. The approach of Loop Quantum Gravity is us…
Complete loop quantization of a dimension 1+2 Lorentzian gravity theory
Rodrigo M S Barbosa, Clisthenis P Constantinidis, Zui Oporto +1
De Sitter Chern-Simons gravity in D = 1 + 2 spacetime is known to possess an extension with a Barbero-Immirzi like parameter. We find a partial gauge fixing which leaves a compact…
Quantization of Lorentzian 3d Gravity by Partial Gauge Fixing
Rodrigo M. S. Barbosa, Clisthenis P Constantinidis, Zui Oporto +1
D = 2+1 gravity with a cosmological constant has been shown by Bonzom and Livine to present a Barbero-Immirzi like ambiguity depending on a parameter. We make use of this fact to s…
Thermodynamics of phantom black holes in Einstein-Maxwell-Dilaton theory
Manuel E. Rodrigues, Zui A. A. Oporto
A thermodynamic analysis of the black hole solutions coming from the Einstein-Maxwell-Dilaton theory (EMD) in 4D is done. By consider the canonical and grand-canonical ensemble, we…