About the Dirac Equation with a $δ$ potential
arXiv:quant-ph/0003045 · doi:10.1088/0305-4470/33/30/303
Abstract
An elementary treatment of the Dirac Equation in the presence of a three-dimensional spherically symmetric $δ(r-r_0)$-potential is presented. We show how to handle the matching conditions in the configuration space, and discuss the occurrence of supercritical effects.
8 pages, 1 postscript figure, Latex, Revised