Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Oliveira, R. R. S."'
Autor:
Oliveira, R. R. S.
In this comment, we obtain the complete energy levels for Dvornikov's paper, that is, the energy levels dependent on two quantum numbers, namely, the radial quantum number (given by $N$) and the angular quantum number (given by $J_z$). In particular,
Externí odkaz:
http://arxiv.org/abs/2411.04338
Autor:
Oliveira, R. R. S.
In this paper, we determine the relativistic bound-state solutions for the charged (DO) Dirac oscillator in a rotating frame in the Bonnor-Melvin-Lambda spacetime in $(2+1)$-dimensions, where such solutions are given by the two-component Dirac spinor
Externí odkaz:
http://arxiv.org/abs/2410.17535
Autor:
Oliveira, R. R. S.
Publikováno v:
Phys. Lett. B 856 (2024) 138888
In this comment, we point out a series of errors made by Senjaya in your paper (2024) \cite{Senjaya}. In particular, these errors involved the Dirac equation in the 3+1 dimensional Schwarzschild spacetime, tetrad field, curved gamma matrices, and the
Externí odkaz:
http://arxiv.org/abs/2407.18790
Autor:
Oliveira, R. R. S.
In this comment, we showed that the line element ("metric'') worked by Jusufi (Eur. Phys. J. C 76: 332, 2016) is incorrect since he worked with a spinning cosmic string with torsion in $(2+1)$-dimensions (and in polar coordinates), which cannot happe
Externí odkaz:
http://arxiv.org/abs/2406.19658
Autor:
Oliveira, R. R. S.
In this paper, we determine the bound-state solutions for Dirac fermions with electric dipole moment (EDM) and position-dependent mass (PDM) in the presence of a radial magnetic field generated by magnetic monopoles. To achieve this, we work with the
Externí odkaz:
http://arxiv.org/abs/2405.16300
Autor:
Oliveira, R. R. S.
In this paper, we study the relativistic energy spectrum for Dirac fermions under rainbow gravity effects in the $(3+1)$-dimensional Bonnor-Melvin-Lambda spacetime, where we work with the curved Dirac equation in cylindrical coordinates. Using the te
Externí odkaz:
http://arxiv.org/abs/2405.12449
Autor:
Oliveira, R. R. S.
Publikováno v:
Class. Quantum Grav. 41, 175017 (2024)
In this paper, we determine the relativistic and nonrelativistic energy levels for Dirac fermions in a spinning conical G\"odel-type spacetime in $(2+1)$-dimensions, where we work with the curved Dirac equation in polar coordinates and we use the tet
Externí odkaz:
http://arxiv.org/abs/2405.11334
Autor:
Oliveira, R. R. S.
In this paper, we study the relativistic and nonrelativistic Landau levels for Dirac fermions in the cosmic string spacetime in the context of rainbow gravity in $(3+1)$-dimensions, where we work with the curved Dirac equation with minimal coupling i
Externí odkaz:
http://arxiv.org/abs/2403.01366
Autor:
Oliveira, R. R. S.
Publikováno v:
General Relativity and Gravitation, vol 56, page 30, (2024)
In this paper, we analyze the relativistic and nonrelativistic energy spectra (fermionic Landau levels) for the noncommutative quantum Hall effect with anomalous magnetic moment in the conical G\"odel-type spacetime in (2+1)-dimensions, where such sp
Externí odkaz:
http://arxiv.org/abs/2402.15720
Autor:
Oliveira, R. R. S.
In this comment, we showed that the Dirac equation in the screw dislocation space-time also carries a term that represents the torsion of such topological defect, given by $K_\mu$. Therefore, the Dirac equation worked by Wang et al. is incomplete sin
Externí odkaz:
http://arxiv.org/abs/2401.10919