output
20012026
most citedAn exact Schwarzschild-like solution in a bumblebee gravity model

248 citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions
Showing 2015Show all

26 papers · 1 filter

hep-th2015★ 58 cited

Classical Lagrangians and Finsler structures for the nonminimal fermion sector of the Standard-Model Extension

M. Schreck

This article is devoted to finding classical point-particle equivalents for the fermion sector of the nonminimal Standard-Model Extension (SME). For a series of nonminimal operator…

gr-qc2015★ 23 cited

The general form of the coupled Horndeski Lagrangian that allows cosmological scaling solutions

Adalto R. Gomes, Luca Amendola

We consider the general scalar field Horndeski Lagrangian coupled to matter. Within this class of models, we present two results that are independent of the particular form of the…

hep-th2015★ 72 cited

Noninertial effects on the quantum dynamics of scalar bosons

Luis B. Castro

The noninertial effect of rotating frames on the quantum dynamics of scalar bosons embedded in the background of a cosmic string is considered. In this work, scalar bosons are desc…

hep-th2015★ 6 cited

Topological self-dual configurations in a Maxwell--Higgs model with a CPT-odd and Lorentz-violating nonminimal coupling

Rodolfo Casana, Manoel M. Ferreira, Alexsandro Lucena Mota

We have studied the existence of topological self-dual configurations in a nonminimal CPT-odd and Lorentz-violating (LV) Maxwell-Higgs model, where the LV interaction is introduced…

hep-th2015★ 12 cited

Self-dual configurations in Abelian Higgs models with -generalized gauge field dynamics

R. Casana, A. Cavalcante, E. da Hora

We have shown the existence of self-dual solutions in new Maxwell-Higgs scenarios where the gauge field possesses a -generalized dynamic, i.e., the kinetic term of gauge field i…

hep-th2015★ 36 cited

Topological self-dual configurations in a Lorentz-violating gauged O(3) sigma model

R. Casana, C. F. Farias, M. M. Ferreira

We have studied the existence of topological Bogomol'nyi-Prasad-Sommerfield or self-dual configurations in a Lorentz-violating gauged nonlinear sigma model, where -even…

math-ph2015

Logarithmic Cycles of the Time: An Quaternionic Approach

J. Marão

The satisfactory development of Quaternionic Analysis has indicated new solutions for physical and mathematical problems. It is worth mentioning the fact that quaternions possess f…

physics.gen-ph2015★ 3 cited

Effects of an additional dimension in the Young experiment

Allan Kardec Barros

The results of the Young experiment can be analyzed either by classical or Quantum Physics. The later one though leads to a more complete interpretation, based on two different pat…

hep-th2015★ 21 cited

Topological vortices in generalized Born-Infeld-Higgs electrodynamics

R. Casana, E. da Hora, D. Rubiera-Garcia +1

A consistent BPS formalism to study the existence of topological axially symmetric vortices in generalized versions of the Born-Infeld-Higgs electrodynamics is implemented. Such a…

quant-ph2015★ 5 cited

Fermions in the background of mixed vector-scalar-pseudoscalar square potentials

Luiz P. de Oliveira, Luis B. Castro

The general Dirac equation in 1+1 dimensions with a potential with a completely general Lorentz structure is studied. Considering mixed vector-scalar-pseudoscalar square potentials…

hep-th2015★ 7 cited

Relativistic quantum dynamics of vector bosons in an Aharonov-Bohm potential

Luis B. Castro, Edilberto O. Silva

The Aharonov-Bohm (AB) problem for vector bosons by the Duffin-Kemmer-Petiau (DKP) formalism is analyzed. Depending on the values of the spin projection, the relevant eigenvalue eq…

hep-th2015★ 14 cited

Relativistic quantum dynamics of neutral particle in external electric fields: An approach on effects of spin

F. S. Azevedo, Edilberto O. Silva, Luis B. Castro +2

The planar quantum dynamics of spin-1/2 neutral particle interacting with electrical fields is considered. A set of first order differential equations are obtained directly from th…

hep-th2015★ 1 cited

Self-dual configurations in a generalized Abelian Chern-Simons-Higgs model with explicit breaking of the Lorentz covariance

Rodolfo Casana, Lucas Sourrouille

We have studied the existence of self-dual solitonic solutions in a generalization of the Abelian Chern-Simons-Higgs model. Such a generalization introduces two different nonnegati…

hep-th2015★ 23 cited

A Detailed Study of Bogomol'nyi Equations in Two-Dimensional Generalized Maxwell-Higgs Model Using \textit{On-Shell} Method

Ardian Nata Atmaja, Handhika Satrio Ramadhan, Eduardo da Hora

We use a recent {\it on-shell} Bogomol'nyi method, developed in~\cite{Atmaja:2014fha}, to construct Bogomol'nyi equations of the two-dimensional generalized Maxwell-Higgs model~\ci…

hep-ph2015★ 39 cited

Constraining CPT-even and Lorentz-violating nonminimal couplings with the electron magnetic and electric dipole moments

Jonas B. Araujo, Rodolfo Casana, Manoel M. Ferreira

We analyse some dimension-five CPT-even and Lorentz-violating nonminimal couplings between fermionic and gauge fields in the context of the Dirac equation. After evaluating the non…

math-ph2015★ 5 cited

Symplectic Dirac Equation

R. G. G. Amorim, S. C. Ulhoa, Edilberto O. Silva

Symplectic unitary representations for the Poincaré group are studied. The formalism is based on the noncommutative structure of the star-product, and using group theory approach a…

cond-mat.quant-gas2015★ 52 cited

2DEG on a cylindrical shell with a screw dislocation

Cleverson Filgueiras, Edilberto O. Silva

A two dimensional electron gas on a cylindrical surface with a screw dislocation is considered. More precisely, we investigate how both the geometry and the deformed potential due…

astro-ph.HE2015★ 3 cited

Evidences of an innermost stable bound orbit predicted by general relativity from the amplitude of the twin-peak quasi-periodic oscillations

C. Germanà, R. Casana

The twin-peak high-frequency quasi-periodic oscillations (HF QPOs), observed in the power spectra of low-mass X-ray binaries, might carry relevant clues about the physics laws reig…

hep-th2015★ 10 cited

Quantum dynamics of a spin-1/2 charged particle in the presence of magnetic field with scalar and vector couplings

Luis B. Castro, Edilberto O. Silva

The quantum dynamics of a spin-1/2 charged particle in the presence of magnetic field is analyzed for the general case where scalar and vector couplings are considered. The energy…

hep-th2015★ 33 cited

Generation of geometrical phases and persistent spin currents in 1-dimensional rings by Lorentz-violating terms

R. Casana, M. M. Ferreira, V. E. Mouchrek-Santos +1

We have demonstrated that Lorentz-violating terms stemming from the fermion sector of the SME are able to generate geometrical phases on the wave function of electrons confined in…

hep-th2015★ 64 cited

Quantum dynamics of scalar bosons in a cosmic string background

Luis B. Castro

The quantum dynamics of scalar bosons embedded in the background of a cosmic string is considered. In this work, scalar bosons are described by the Duffin-Kemmer-Petiau (DKP) forma…

quant-ph2015★ 1 cited

Optical and spin-optical superpositions modulated by Aharonov-Bohm effect

Thiago Prudencio

Generation of Aharonov-Bohm (AB) phase has achieved a state-of-the-art in mesoscopic systems with manipulation and control of the AB effect. The possibility of transfer information…

hep-th2015★ 10 cited

Pseudospin and spin symmetries in 1+1 dimensions: The case of the Coulomb potential

Luis B. Castro, Antonio S. de Castro, Pedro Alberto

The problem of fermions in 1+1 dimensions in the presence of a pseudoscalar Coulomb potential plus a mixing of vector and scalar Coulomb potentials which have equal or opposite sig…

hep-th2015★ 10 cited

Nontopological self-dual Maxwell-Higgs vortices

D. Bazeia, R. Casana, M. M. Ferreira +1

We study the existence of self-dual nontopological vortices in generalized Maxwell-Higgs models recently introduced in Ref. \cite{gv}. Our investigation is explicitly illustrated b…