On Generalized Logarithmic Electrodynamics

Abstract

The generalized logarithmic electrodynamics with two parameters $\beta$ and $\gamma$ is considered. The indexes of refraction of light in the external magnetic field are calculated. In the case $\beta =\gamma$ we come to results obtained by P. Gaete and J. Helayël-Neto [7] (Eur.Phys.J. C\textbf{74}, 2816 (2014)). The bound on the values of $\beta$, $\gamma$ was obtained from the Biréfringence Magnétique du Vide (BMV) experiment. The symmetrical Belinfante energy-momentum tensor and dilatation current are found.

7 pages, no figures, changed title, corrected typo in Eq. 11

References in corpus (4)

• Asymptotic Reissner-Nordstrom black holes
• A model of nonlinear electrodynamics
• First results from the new PVLAS apparatus: a new limit on vacuum magnetic birefringence
• Effective Lagrangian at Cubic Order in Electromagnetic Fields and Vacuum Birefringence