156 citations · 1.2k across the 64 of their papers we have counts for
64 papers
An Abelian Higgs model for disclinations in nematics
A. de Pádua Santos, F. Moraes, F. A. N. Santos +1
Topological defects in elastic media may be described by a geometric field akin to three-dimensional gravity. From this point of view, disclinations are line defects of zero width…
Metamaterial branes
F. A. P. Alves-Junior, A. B. Barreto, F. Moraes
In this article, we propose metamaterials analog brane models based on the geometric optics approach. We show how to model the Randall-Sundrum thin brane model and the Gremm model…
Geometric theory of topological defects: methodological developments and new trends
Sébastien Fumeron, Bertrand Berche, Fernando Moraes
Liquid crystals generally support orientational singularities of the director field known as topological defects. These latter modifiy transport properties in their vicinity as if…
Classical Kalb-Ramond field theory in curved spacetimes
Bertrand Berche, Sébastien Fumeron, Fernando Moraes
We propose to develop the Kalb-Ramond theory in four-dimensional spacetime at the level of a classical field theory by following the same formal development steps as in Maxwell the…
A simple light-trapping device from a hyperbolic metamaterial on a catenoid
Frankbelson dos Santos Azevedo, José Diêgo M. de Lima, Antônio de Pádua Santos +2
By using both ray and wave optics, we show that a simple device which consists on a film of hyperbolic metamaterial on the surface of a catenoid can be used to trap light. From the…
Current vortices in hexagonal graphene quantum dots
Eudes Gomes, Fernando Moraes
Newly synthesized nanostructures of graphene appear as a promising breeding ground for new technology. Therefore, it is important to identify the role played by the boundary condit…