On generalized Born--Infeld electrodynamics

Understand

The generalized Born--Infeld electrodynamics with two parameters is investigated.

• In this model the propagation of a linearly polarized laser beam in the external transverse magnetic field is considered.
• It was shown that there is the effect of vacuum birefringence, and we evaluate induced ellipticity.
• The upper bounds on the combination of parameters introduced from the experimental data of BRST and PVLAS Collaborations were obtained.