On the Klein–Gordon scalar field oscillators in a spacetime with spiral-like dislocations in external magnetic fields by Omar Mustafa, Abdullah Guvendi

“…Abstract We investigate the effects of two types of spiral dislocation (the distortion of the radial line, labeled as spiral dislocation I, and the distortion of a circle, labeled as spiral dislocation II) on the relativistic dynamics of the Klein–Gordon (KG) oscillator fields, both in the presence and absence of external magnetic fields. …”
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Dirac equation solution in the light front via linear algebra and its particularities by Jorge Henrique de Oliveira Sales, Gabriel de Oliveira Aragão, Diego Ramos do Nascimento, Ronaldo Thibes

“…This proposal of coordinate transformations comes from Dirac who originally introduced three distinct forms of relativistic dynamics possible depending on the choice we make of the different hypersurfaces constant in time. …”
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