39 citations · 323 across the 26 of their papers we have counts for
4 papers · 1 filter
The wiggly cosmic string as a waveguide for massless and massive fields
Frankbelson dos S. Azevedo, Fernando Moraes, Francisco Mireles +2
We examine the effect of a wiggly cosmic string for both massless and massive particle propagation along the string axis. We show that the wave equation that governs the propagatio…
Cosmology in the laboratory: an analogy between hyperbolic metamaterials and the Milne universe
David Figueiredo, Fernando Moraes, Sébastien Fumeron +1
This article shows that the compactified Milne universe geometry, a toy model for the big crunch/big bang transition, can be realized in hyperbolic metamaterials, a new class of na…
Geometrical optics limit of phonon transport in a channel of disclinations
Sébastien Fumeron, Bertrand Berche, Fernando Moraes +2
The presence of topological defects in a material can modify its electrical, acoustic or thermal properties. However, when a group of defects is present, the calculations can becom…
Using torsion to manipulate spin currents
Sébastien Fumeron, Bertrand Berche, Ernesto Medina +2
We address the problem of quantum particles moving on a manifold characterised by the presence of torsion along a preferential axis. In fact, such a torsion may be taylored by the…