Behavior of a spin-1/2 massive charged particle in Schwarzschild immersed in an electromagnetic universe

• Published in: General relativity and gravitation Vol. 50; no. 2; pp. 1 - 16
• Main Author: Al-Badawi, A.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01-02-2018; Springer Nature B.V
• Subjects: Astronomy; Astrophysics and Cosmology; Charged particles; Classical and Quantum Gravitation; Differential Geometry; Dirac equation; Electromagnetic fields; Electromagnetism; Gravity; Mathematical analysis; Mathematical and Computational Physics; Particle spin; Physics; Physics and Astronomy; Quantum Physics; Relativity Theory; Research Article; Schwarzschild metric; Theoretical; Universe; Wave equations; Interaction with the spin-1/2 massive charged particle; Quantum aspect; Radial wave equation; Schwarzschild metric coupled to a uniform external electromagnetic field
• ISSN: 0001-7701; 1572-9532
• DOI: 10.1007/s10714-017-2338-0

The Dirac equation is considered in a spacetime that represents a Schwarzschild metric coupled to a uniform external electromagnetic field. Due to the presence of electromagnetic field from the surroundings, the interaction with the spin-1/2 massive charged particle is considered. The equations of the spin-1/2 massive charged particle are separated into radial and angular equations by adopting the Newman–Penrose formalism. The angular equations obtained are similar to the Schwarzschild geometry. For the radial equations we manage to obtain the one dimensional Schrödinger-type wave equations with effective potentials. Finally, we study the behavior of the potentials by plotting them as a function of radial distance and expose the effect of the external parameter, charge and the frequency of the particle on them.