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4 papers · 1 filter
New Singular and Nonsingular Colliding Wave Solutions in Einstein - Maxwell - Scalar Theory
O. Gurtug, M. Halilsoy, I. Sakalli
A technique is given to generate coupled scalar field solutions in colliding Einstein - Maxwell (EM) waves. By employing the Bell - Szekeres solution as seed and depending on the c…
Perturbed Coulombic potentials in Dirac and Klein-Gordon equations
Omar Mustafa
A relativistic extension of our pseudo-shifted -expansion technique is presented to solve for the eigenvalues of Dirac and Klein-Gordon equations. Once more we show the numer…
Collision of Electromagnetic Shock Waves Coupled with Axion Waves: An Example
M. Halilsoy, I. Sakalli
We present an exact solution that describes collision of electromagnetic shock waves coupled with axion plane waves. The axion has a rather special coupling to the cross polarizati…
Dirac and Klein-Gordon particles in complex Coulombic fields; a similarity transformation
Omar Mustafa
The observation that the existance of the amazing reality and discreteness of the spectrum need not be attributed to the Hermiticity of the Hamiltonian is reemphasized in the conte…