17 papers
On the Electric Charge Quantization from the Dirac-Aharonov-Bohm Potential
F. A. Barone, J. A. Helayel-Neto
The purpose of this paper is to show that, under certain restrictions, we can take a Dirac-Aharonov-Bohm potential as a pure gauge field. We argue that a modified quantization cond…
Off-Shell Extended Supersymmetries and Lorentz-Violating Abelian Gauge Models
Wander G. Ney, J. A. Helayel-Neto, Wesley Spalenza
In this work, we propose the N=2 and N=4 supersymmetric extensions realized off-shell of the Abelian gauge model with Chern-Simons Lorentz-breaking term. We start with the theory i…
Hyperbolic Space Forms and Orbifold Compactification in M-Theory
A. A. Bytsenko, M. E. X. Guimaraes, J. A. Helayel-Neto
We analyze solutions of string theory and supergravity which involve real hyperbolic spaces. Examples of string compactifications are given in terms of hyperbolic coset spaces of f…
The N = 2 and N = 4 Supersymmetric Extensions of the Lorentz- and CPT-Violating Term in Abelian Gauge Theories
Wander G. Ney, J. A. Helayel-Neto, Wesley Spalenza
In this work, we propose the N=2 and N=4 supersymmetric extensions of the Lorentz-breaking Abelian Chern-Simons term. We formulate the question of the Lorentz violation in 6 and 10…
A Remark on the Aharonov-Bohm Potential and a Discussion on the Electric Charge Quantization
F. A. Barone, J. A. Helayel-Neto
The purpose of this work is to stress on a mathematical requirement of the Stokes' theorem that, naturally, yields a reassessment of the electric charge quantization condition, whi…
Lorentz-symmetry Violation and Electrically Charged Vortices in the Planar Regime
H. Belich, T. Costa-Soares, M. M. Ferreira +2
We start from a Lorentz non-invariant Abelian-Higgs model in 1+3 dimensions, and carry out its dimensional reduction to . The planar model resulting thereof is composed by a…