Exploring light propagation in nonlinear electrodynamics: phase and group velocities and related phenomena

T. W. Cruz, V. A. De Lorenci, E. Guzmán-Herrera +1

Nonlinear electrodynamics has been an important area of research for a long time. Investigations based on nonlinear Lagrangians, such as Euler-Heisenberg and Born-Infeld, are instr…