The Effective Lagrangian of QED with a Magnetic Charge

V. G. Kovalevich, P. Osland, Ya. M. Shnir +1

The effective Lagrangian of QED coupled to dyons is calculated. The resulting generalization of the Euler-Heisenberg Lagrangian contains non-linear $P$- and $T$-nonivariant (but $C…