115 citations · 171 across the 13 of their papers we have counts for
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Standstill Electric Charge Generates Magnetostatic Field Under Born-Infeld Electrodynamics
S. O. Vellozo, Jose A. Helayel-Neto, A. W. Smith +1
The Abelian Born-Infeld classical non-linear electrodynamic has been used to investigate the electric and magnetostatic fields generated by a point-like electrical charge at rest i…
An extension of the Linear Delta Expansion to Superspace
M. C. B. Abdalla, J. A. Helayël-Neto, Daniel L. Nedel +1
We introduce and discuss the method of Linear Delta Expansion for the calculation of effective potentials in superspace, by adopting the improved version of the super-Feynman rules…
On Dirac-like Monopoles in a Lorentz- and CPT-violating Electrodynamics
N. M. Barraz, J. M. Fonseca, W. A. Moura-Melo +1
We study magnetic monopoles in a Lorentz- and CPT-odd electrodynamical framework in (3+1) dimensions. This is the standard Maxwell model extended by means of a Chern-Simons-like te…
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…