35 citations · 60 across the 5 of their papers we have counts for
5 papers
Charge Asymmetry in the Brane World and Formation of Charged Black Holes
Herman J. Mosquera Cuesta, André Penna-Firme, Abdel Pérez-Lorenzana
In theories with an infinite extra dimension, free particles localized on the brane can leak out to the extra space. We argue that if there were color confinement in the bulk, elec…
The Spherical Landau Problem
Cesar Castilho, Andre Penna-Firme
The magnetization for electrons on a two-dimensional sphere, under a spherically symmetrical normal magnetic field has been studied in the large field limit. This allows us to use…
Conformal symmetry, anomaly and effective action for metric-scalar gravity with torsion
J. A. Helayel-Neto, A. Penna-Firme, I. L. Shapiro
We consider some aspects of conformal symmetry in a metric-scalar-torsion system. It is shown that, for some special choice of the action, torsion acts as a compensating field and…
(2,0)-Super-Yang-Mills Coupled to Non-Linear Sigma-Model
M. S. Goes-Negrao, M. R. Negrao, A. B. Penna-Firme
Considering a class of (2,0)-super-Yang-Mills multiplets that accommodate a pair of independent gauge potentials in connection with a single symmetry group, we present here their c…
Anti-symmetric Tensor Matter Fields and Non-Linear Sigma-Model
M. G. Negrao, A. Penna-Firme, J. A. Helayel-Neto
The equivalence between rank-2 anti-symmetric tensor fields, considered as gauge potentials, and torsionless non-linear -models suggests us to study the possibility of coupling…