3 papers
quant-ph2026
Non-Abelian Extensions of the Dirac Oscillator: A Theoretical Approach
Abdelmalek Boumali, Sarra Garrah
We formulate the Dirac oscillator covariantly in the presence of external non-Abelian gauge fields. More precisely, the matter field is written as , where denotes…
hep-th2025
Quantum Dynamics of Scalar Particles in a Spinning Cosmic String Background with Topological Defects: A Feshbach-Villars Formalism Perspective
Sarra Garah, Abdelmalek Boumali
We study the relativistic quantum dynamics of spin-0 particles in the spacetime of a spinning cosmic string that carries both spacelike disclination (conical deficit ) and scre…
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…