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gr-qc2026
Black-hole thermodynamics in doubly special relativity: near-horizon g/f temperature scaling under a shared operational scale
Abdelmalek Boumali, Nosratollah Jafari
Doubly Special Relativity (DSR) deforms special-relativistic kinematics by introducing an invariant Planck energy scale alongside the speed of light, while preser…
gr-qc2025
Dirac Oscillator for Spin-1/2 Particles in a Spinning Cosmic String Spacetime with Spacelike Disclination and Dislocation
Abdelmalek Boumali
We study the Dirac oscillator for spin-1/2 particles in a spacetime containing a spinning cosmic string endowed with both curvature (disclination) and torsion (screw dislocation).…
gr-qc2025
Quantum Dynamics of a Scalar Particle in Schwarzschild Spacetime using the Generalized Feshbach Villars Transformation
Sarra Garah, Abdelmalek Boumali
In this work, we apply the generalised Feshbach Villars transformation (GFVT) to spin-0 scalar fields in a Schwarzschild gravitational background. Starting from the covariant Klein…