Self-Adjointness of the Dirac Hamiltonian and Vacuum Quantum Numbers Induced by a Singular External Field
arXiv:hep-th/9909204
Abstract
Effects of fermion-vacuum polarization by a singular configuration of an external static vector field are considered in (2 + 1)-dimensional spacetime. Expressions for the induced vacuum charge and magnetic flux are obtained.
19 pages, LaTex, 1 figures