45 citations · 135 across the 9 of their papers we have counts for
9 papers
Elastic field causing noncommutativity
A. L. Silva Netto, A. M. de M. Carvalho, G. Q. Garcia +1
We study how a uniform torsion background, modeling a continuous density of screw dislocations and induces effective spatial noncommutativity and reshapes the energy spectrum of a…
Scaterring of Massless Quasiparticles in the 3He-A Superfluid
Alexandre M. de M. Carvalho, Alisson S. Marques, Glauber T. Silva +2
In this work, we analyze the scattering of fermionic quasiparticles in the presence of radial disgyrations and symmetric vortices in the superfluid 3He-A. We consider a Volovik ana…
Landau levels for massive disclinated graphene-based topological insulator
G. Q. Garcia, J. R. S. Oliveira, P. J. Porfírio +1
In this work, we investigate the massive Kane-Mele model for graphene in the presence of disclination and an external magnetic field, where graphene behaviors as a topological insu…
Graphene-based topological insulator in the presence of a disclination submitted to a uniform magnetic field
J. R. S. Oliveira, G. Q. Garcia, P. J. Porfírio +1
In this paper we investigate quasiparticles in graphene-based topological insulator with a wedge disclination in the presence of a uniform magnetic field. In particular, we conside…
Ground state energy and topological mass in spacetimes with nontrivial topology
Paulo J. Porfírio, Herondy F. Santana Mota, Gabriel Queiroz Garcia
In the present paper, we investigate the ground state energy of a massless scalar field and generation of topological mass by considering a quasi-periodically identified Minkowski…
Graphene wormhole trapped by external magnetic field
G. Q. Garcia, P. J. Porfírio, D. C. Moreira +1
In this work we study the behavior of massless fermions in a graphene wormhole and in the presence of an external magnetic field. The graphene wormhole is made from two sheets of g…
Weyl fermions in a family of Gödel-type geometries with a topological defect
G. Q. Garcia, J. R. de S. Oliveira, Claudio Furtado
In this paper we study Weyl fermions in a family of Gödel-type geometries in Einstein general relativity. We also consider that these solutions are embedded in a topological defect…
Evolution of Landau levels in graphene-based topological insulators in the presence of wedge disclinations
J. R. S. Oliveira, G. Q. Garcia, C. Furtado +1
In this paper we consider modification of electronic properties of graphene-based topological insulator in the presence of wedge disclination and magnetic field by adopting the Kan…
Fermions in Gödel-type background space-times with torsion and the Landau quantization
G. Q. Garcia, J. R. de S. Oliveira, K. Bakke +1
In this paper, we analyze Dirac fermions in Gödel-type background space-times with torsion. We also consider the Gödel-type spacetimes embedded in a topological defect background.…