[HTML][HTML] Scattering and bound states for the Hulthén potential in a cosmic string background

M Hosseinpour, FM Andrade, EO Silva… - The European Physical …, 2017 - Springer
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 solution for …

Extension of PT-symmetric quantum mechanics to the Dirac theory with position-dependent mass

CS Jia, A de Souza Dutra - Annals of Physics, 2008 - Elsevier
We present a new method to construct the exactly solvable PT-symmetric potentials within
the framework of the position-dependent effective mass Dirac equation with the vector …

Exact solutions of the Klein–Gordon equation with position-dependent mass for mixed vector and scalar kink-like potentials

CS Jia, XP Li, LH Zhang - Few-Body Systems, 2012 - Springer
The relativistic problem of spinless particles with position-dependent mass subject to kink-
like potentials (~ tanh αx) is investigated. By using the basic concepts of the supersymmetric …

Remarks on the Dirac oscillator in dimensions

FM Andrade, EO Silva - arxiv preprint arxiv:1406.3249, 2014 - arxiv.org
In this work the Dirac oscillator in $(2+ 1) $ dimensions is considered. We solve the problem
in polar coordinates and discuss the dependence of the energy spectrum on the spin …

Position-dependent effective mass Dirac equations with PT-symmetric and non-PT-symmetric potentials

CS Jia, A de Souza Dutra - Journal of Physics A: mathematical …, 2006 - iopscience.iop.org
We present a new procedure to construct the one-dimensional non-Hermitian imaginary
potential with a real energy spectrum in the context of the position-dependent effective mass …

Fermion localization on two-field thick branes

LB Castro - Physical Review D—Particles, Fields, Gravitation, and …, 2011 - APS
In a recent paper published in this journal, Almeida and collaborators [Phys. Rev. D 79,
125022 (2009) PRVDAQ 1550-7998 10.1103/PhysRevD. 79.125022] analyze the issue of …

Fermion localization on branes with generalized dynamics

LB Castro, LEA Meza - Europhysics Letters, 2013 - iopscience.iop.org
In this letter we consider a specific model of braneworld with nonstandard dynamics diffused
in the literature, specifically we focus our attention on the matter energy density, the energy …

Kink modes and effective four dimensional fermion and Higgs brane models

DP George, RR Volkas - Physical Review D—Particles, Fields, Gravitation, and …, 2007 - APS
In the construction of a classical smoothed out brane world model in five dimensions, one
uses a dynamically generated domain wall (a kink) to localize an effective four dimensional …

Bound states of (1+ 1)-dimensional Dirac equation with kink-like vector potential and delta interaction

M Eshghi, H Mehraban, SM Ikhdair - Acta Mathematicae Applicatae Sinica …, 2015 - Springer
The relativistic problem of spin-1/2 fermions subject to vector hyperbolic (kink-like) potential
(∼ tanh kx) is investigated by using the parametric Nikiforov-Uvarov method. The energy …

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

FS Azevedo, EO Silva, LB Castro, C Filgueiras… - Annals of Physics, 2015 - Elsevier
The planar quantum dynamics of a spin-1/2 neutral particle interacting with electrical fields is
considered. A set of first order differential equations is obtained directly from the planar Dirac …