248 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- R. Casana71 · h 23
- M. M. Ferreira4 profiles69 · h 19
- Edilberto O. Silva3 profiles59 · h 18
- L. B. Castro3 profiles36 · h 17
- M. Schreck27 · h 19
- F. M. Andrade22 · h 17
- F. Simas21 · h 11
- A. R. Gomes20 · h 19
- C. Filgueiras19 · h 17
- E. da Hora3 profiles17 · h 5
- D. Bazeia2 profiles16 · h 40
- J. Reis2 profiles16 · h 8
- Universidade Federal da ParaíbaBR41 papers
- Universidade Estadual Paulista (Unesp)BR27 papers
- Instituto Federal do MaranhãoBR26 papers
- Universidade Federal do CearáBR24 papers
- Universidade Estadual de Ponta GrossaBR23 papers
- Universidade Federal de Campina GrandeBR21 papers
- Universidade de São PauloBR16 papers
- Universidade Federal de LavrasBR16 papers
- Universidade Federal do Espírito SantoBR16 papers
- Universidade Federal de Santa CatarinaBR15 papers
- Centro Brasileiro de Pesquisas FísicasBR14 papers
- Universidade Estadual da Região Tocantina do MaranhãoBR12 papers
25 papers · 1 filter
Lorentz-violating modification of Dirac theory based on spin-nondegenerate operators
J. A. A. S. Reis, M. Schreck
The Standard-Model Extension (SME) parameterizes all possible Lorentz-violating contributions to the Standard Model and General Relativity. It can be considered as an effective fra…
Generalized relativistic harmonic oscillator in minimal length quantum mechanics
Luis B. Castro, Angel E. Obispo
We solve the generalized relativistic harmonic oscillator in 1+1 dimensions in the presence of a minimal length. Using the momentum space representation, we explore all the possibl…
Peccei-Quinn Transformations and Black Holes : Orbit Transmutations and Entanglement Generation
Alessio Marrani, Thiago Prudencio, Diego J. Cirilo-Lombardo
In a recent paper [Mod. Phys. Lett. A30 (2015) 1550104], the black-hole/qubit correspondence (BHQC) was exploited to define "black hole quantum circuits" allowing for a change of t…
Constraining CPT-odd nonminimal interactions in the Electroweak sector
Victor E. Mouchrek-Santos, Manoel M. Ferreira
In this work, we propose two possibilities of CPT-odd and Lorentz-violating (LV) nonminimal couplings in the Electroweak sector. These terms are gauge-invariant and couple a fixed…
Gupta-Bleuler's quantization of a parity-odd CPT-even electrodynamics of the standard model extension
R. Casana, M. M. Ferreira, F. E. P. dos Santos
{Following a successfully quantization scheme previously }{{% developed {\ in Ref. \cite{GUPTAEVEN} for a}} parity-even {gauge sector} {of the SME, we}} have established the Gupta-…
Self-dual solitons in a -odd and Lorentz-violating gauged sigma model
R. Casana, C. F. Farias, M. M. Ferreira +1
We have performed a complete study of self-dual configurations in a -odd and Lorentz-violating gauged nonlinear sigma model. We have consistently implemented the Bogomo…
Soliton solutions in two-dimensional Lorentz-violating higher derivative scalar theory
E. Passos, C. A. G. Almeida, F. A. Brito +3
This paper shows a new approach to obtain analytical topological defects of a 2D Myers-Pospelov Lagrangian for two scalar fields. Such a Lagrangian presents higher-order kinetic te…
Non-orthogonality and -dependence eccentricity of polarized electromagnetic waves in CPT-even Lorentz violation
Thiago Prudencio, Humberto Belich
We discuss the modified Maxwell action of a -type Lorentz symmetry breaking theory and present a solution of Maxwell equations derived in the cases of linear and ellipticall…
Orthogonal polynomials on the unit circle: Verblunsky coefficients with some restrictions imposed on a pair of related real sequences
Cleonice F. Bracciali, Jairo S. Silva, A. Sri Ranga +1
It was shown recently that associated with a pair of real sequences , with a positive chain seque…
Dynamics of gravitating hadron matter in Bianchi-IX cosmological model
Sergey A. Pavluchenko
We perform an analysis of the Einstein-Skyrme cosmological model in Bianchi-IX background. We analytically describe asymptotic regimes and semi-analytically -- generic regimes. It…
Scattering and bound states of Dirac Equation in presence of cosmic string for Hulthén potential
Mansoureh Hosseinpour, Fabiano M. Andrade, Edilberto O. Silva +1
In this work we study the Dirac equation with vector and scalar potentials in the spacetime generated by a cosmic string. Using an approximation for the centrifugal term, a solutio…
Quantum motion of a spinless particle in curved space: A viewpoint of scattering theory
Fabiano M. Andrade, Augusto R. Chumbes, Cleverson Filgueiras +1
In this work, we study the scattering of a spinless charged particle constrained to move on a curved surface in the presence of the Aharonov-Bohm potential. We begin with the equat…
Cosmological dynamics of spatially flat Einstein-Gauss-Bonnet models in various dimensions: Low-dimensional -term case
Sergey A. Pavluchenko
In this paper we perform a systematic study of spatially flat [(3+D)+1]-dimensional Einstein-Gauss-Bonnet cosmological models with -term. We consider models that topologically a…
Properties of strongly magnetized ultradense matter and their imprints on magnetar pulsations
C. Vásquez Flores, L. B. Castro, G. Lugones
We investigate the effect of strong magnetic fields on the adiabatic radial oscillations of hadronic stars. We describe magnetized hadronic matter within the framework of the relat…
Landau quantization, Aharonov-Bohm effect and two-dimensional pseudoharmonic quantum dot around a screw dislocation
Cleverson Filgueiras, Moisés Rojas, Gilson Aciole +1
In this paper, we investigate the influence of a screw dislocation on the energy levels and the wavefunctions of an electron confined in a two-dimensional pseudoharmonic quantum do…
Suppression of two-bounce windows in kink-antikink collisions
F. C. Simas, Adalto R. Gomes, K. Z. Nobrega +1
We consider a class of topological defects in -dimensions with a deformed kink structure whose stability analysis leads to a Schrödinger-like equation with a zero-mode…
Relativistic Quantum Dynamics on a Double Cone
Felipe Gomes, Edilberto Silva, Jonas Lima +2
In this paper, we study the relativistic quantum problem of a particle constrained to a double cone surface. For this purpose, we build the Dirac equation in a curved space using t…
Cosmological dynamics of spatially flat Einstein-Gauss-Bonnet models in various dimensions. Vacuum case
Sergey A. Pavluchenko
In this paper we perform a systematic study of vacuum spatially flat ((3+D)+1)-dimensional Einstein-Gauss-Bonnet cosmological models. We consider models which topologically are the…
Friedmann dynamics recovered from compactified Einstein-Gauss-Bonnet cosmology
Fabrizio Canfora, Alex Giacomini, Sergey A. Pavluchenko +1
In this paper cosmological dynamics in Einstein-Gauss-Bonnet gravity with a perfect fluid source in arbitrary dimension is studied. A systematic analysis is performed for the case…
Scattering and bound states of a spin--1/2 neutral particle in the cosmic string spacetime
Fabiano M. Andrade, Cleverson Filgueiras, Edilberto O. Silva
In this paper the relativistic quantum dynamics of a spin-1/2 neutral particle with a magnetic moment in the cosmic string spacetime is reexamined by applying the von Neumann t…
General CPT-even dimension-five nonminimal couplings between fermions and photons yielding EDM and MDM
Jonas B. Araujo, Rodolfo Casana, Manoel M. Ferreira
In this letter, we examine a new class of CPT-even nonminimal interactions, between fermions and photons, deprived of higher order derivatives, that yields electric dipole moment (…
Boosting Room-Temperature Li Conductivity via strain in solid electrolytes for Lithium-ion Batteries
R. Mouta, C. W. A. Paschoal
Room-temperature (RT) conductivity of most candidates for solid electrolytes of miniaturized lithium-ion batteries is still 1-2 orders of magnitude below commercial requirements, t…
Effects of quantum deformation on the integer quantum Hall effect
Fabiano M. Andrade, Edilberto O. Silva, Denise Assafrão +1
In this work an application of the --deformed algebra in condensed matter physics is presented. Starting by the --deformed Dirac equation we study the relativistic generaliza…
Fermionic Lorentz violation and its implications for interferometric gravitational-wave detection
M. Schreck
The recent direct detection of gravitational waves reported by Advanced LIGO has inspired the current article. In this context, a particular Lorentz-violating framework for classic…