16 citations · 58 across the 14 of their papers we have counts for
14 papers
Charged scalar bosons in a Bonnor-Melvin- universe at conical approximation
Luis B. Castro, Angel E. Obispo, Andrés G. Jirón
The quantum dynamics of charged scalar bosons in a Bonnor-Melvin- universe is considered. In this study, the behavior of charged scalar bosons is explored within the framework o…
On the electromagnetic interaction and the anomalous term in the Duffin-Kemmer-Petiau theory
Andrés G. Jirón, Luis B. Castro, Antonio S. de Castro +1
The problem of vectorial mesons embedded in an electromagnetic field via Duffin-Kemmer-Petiau (DKP) formalism is reinvestigated. Considering the electromagnetic interaction as a mi…
Remarks on the ()-dimensional Duffin-Kemmer-Petiau oscillator in an external magnetic field
Andrés G. Jirón, Luis B. Castro, Angel E. Obispo +1
This work re-examines the issue of spin- particles in a ()-dimensional Duffin-Kemmer-Petiau oscillator (DKPO) in the presence of an external magnetic field. By following th…
Effect of a critical magnetic field on the control of scalar neutral boson pair production in the context of Lorentz-symmetry violation
Andrés G. Jirón, Angel E. Obispo, J. Daniel Espinoza Loayza +2
This study investigates the production of neutral scalar boson pairs in static electromagnetic fields resulting from Lorentz-symmetry violation (LSV), with a focus on the parity-ev…
Comment on "Relativistic quantum oscillator model under the effects of the violation of Lorentz symmetry by an arbitrary fixed vector field'' by Faizuddin Ahmed
Andrés G. Jirón Vicente, Luis B. Castro, Angel E. Obispo
We obtain the correct expressions for the energy and normalized eigenfunctions for a spin-zero relativistic quantum oscillator model under the violation of Lorentz symmetry defined…
Effects of a uniform magnetic field on twisted graphene nanoribbons
Camila C. Soares, Angel E. Obispo, Andrés G. Jirón Vicente +1
In the present work, the relativistic quantum motion of massless fermions in a helicoidal graphene nanoribbon under the influence of a uniform magnetic field is investigated. Consi…
Remarks on thermodynamic properties of a double ring-shaped quantum dot at low and high temperatures
Andrés G. Jirón Vicente, Luis B. Castro, Angel E. Obispo +1
In a recent paper published in this Journal, Khordad and collaborators [J Low Temp Phys (2018) 190:200] have studied the thermodynamics properties of a GaAs double ring-shaped quan…
Comment on "Chern-Simons theory and atypical Hall conductivity in the Varma phase''
Angel E. Obispo, Francisco A. Cruz Neto, Andrés G. Jirón Vicente +1
In a recent paper published in this Journal [Phys. Rev. B 97, 075135 (2018)], Menezes et al. analyze the topological behavior of a effective bosonic model defined on the Lieb latti…
Comment on "Effective of the q-deformed pseudoscalar magnetic field on the charge carriers in graphene"
Angel E. Obispo, Gisele B. Freitas, Luis B. Castro
We point out a misleading treatment in a recent paper published in this Journal [J. Math. Phys. (2016) 57, 082105] concerning solutions for the two-dimensional Dirac-Weyl equation…
Antibonding Ground state of Adatom Molecules in Bulk Dirac Semimetals
Y. Marques, A. E. Obispo, L. S. Ricco +3
The ground state of the diatomic molecules in nature is inevitably bonding, and its first excited state is antibonding. We demonstrate theoretically that, for a pair of distant ada…
Missing solution in a relativistic Killingbeck potential
Luis B. Castro, Angel E. Obispo
Missing bound-state solutions for fermions in the background of a Killingbeck radial potential including an external magnetic and Aharonov-Bohm (AB) flux fields are examined. The c…
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…
Induced fractional valley number in graphene with topological defects
Angel E. Obispo, Marcelo Hott
We report on the possibility of valley number fractionalization in graphene with a topological defect that is accounted for in Dirac equation by a pseudomagnetic field. The valley…
Fractional fermion charges induced by vector-axial and vector gauge potentials in planar graphene-like structures
Angel E. Obispo, Marcelo Hott
We show that fermion charge fractionalization can take place in a recently proposed chiral gauge model for graphene even in the absence of Kekulé distortion of the graphene honeyco…