INDUCED ELECTROMAGNETIC FIELDS IN NONLINEAR QED
INDUCED ELECTROMAGNETIC FIELDS IN NONLINEAR QED
The Euler–Heisenberg effective Lagrangian is used to obtain general expressions for electric and magnetic fields induced by nonlinearity, to leading order in the nonlinear expansion parameter, and for quasistatic situations. These expressions are then used to compute the induced electromagnetic fields due to a spherical shell with uniform charge distribution …