Double-logarithmic nonlinear electrodynamics

Abstract A new model of nonlinear electrodynamics is introduced and investigated. The theory carries one dimensionful parameter ? as in Born-Infeld electrodynamics. It shown that the dual symmetry dilatation (scale) are broken proposed model. electric field a point-like charge derived for this model, showing it non-singular at origin. Using field, static energy calculated. In presence an external magnetic shows phenomenon known vacuum birefringence. refraction index two polarizations, parallel perpendicular to induction canonical symmetrical Belinfante energy-momentum tensors obtained. causality unitarity principles, regions where becomes causal unitary found.