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arXiv · 2504.10537

Amelino-Camelia DSR effects on charged Dirac oscillators: Modulated spinning magnetic vortices

Abdullah Guvendi·Omar Mustafa·Nosratollah Jafari
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Abstract

This work explores the two-dimensional Dirac oscillator (DO) within the framework of Amelino-Camelia doubly special relativity (DSR), employing a modified Dirac equation that preserves the first-order nature of the relativistic wave equation. By introducing non-minimal couplings, the system provides an exact analytical solution in terms of confluent hypergeometric functions, along with closed-form expressions for the energy spectrum (indulging a Landau-like signature along with accidental spin-degeneracies)-. In the low-energy limit, the results reproduce the well-known two-dimensional Dirac oscillator spectrum, and in the nonrelativistic regime, the results reduce the Schr\"odinger oscillator spectrum. First-order corrections in this DSR model introduce a mass-splitting term proportional to $\pm \mathcal{E}_{\circ}/\mathcal{E}_p$, where $\mathcal{E}_{\circ} = mc^2$ is the rest energy and $\mathcal{E}_p$ is the Planck energy. These corrections preserve the symmetry between the energies of particles and antiparticles around zero energy, but induce a shift in the energy levels that becomes more significant for higher excited states ($n > 0$). By mapping the system to a DSR-deformed charged Dirac oscillator in the presence of an out-of-plane uniform magnetic field, we show that the leading-order Planck-scale corrections vanish at a critical magnetic field $\mathcal{B}^{c}_{0}$, and as the magnetic field approaches this critical value, the relativistic energy levels approach $\mathcal{E}_{n,\pm} = \pm \mathcal{E}_{\circ}$. Finally, we identify a previously undetermined feature in two-dimensional charged Dirac oscillator systems in a magnetic field, revealing that the corresponding modes manifest as spinning magnetic vortices.

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Abdullah Guvendi, Omar Mustafa, Nosratollah Jafari. 2025-04-13. Amelino-Camelia DSR effects on charged Dirac oscillators: Modulated spinning magnetic vortices. https://doi.org/10.1016/j.physletb.2025.139547

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