Nonlinear electrodynamics with birefringence

Abstract

A new model of nonlinear electrodynamics with three parameters is suggested. The phenomena of vacuum birefringence takes place when there is the external constant magnetic field. We calculate the indices of refraction for two polarizations of electromagnetic waves, parallel and perpendicular to the magnetic induction field. From the Biréfringence Magnétique du Vide (BMV) experiment one of the coefficients, $\gamma \approx 10^{-20}$ T${}^{-2}$, was estimated. The canonical, symmetrical Belinfante energy-momentum tensors and dilatation current were obtained. The dilatation symmetry and the dual symmetry are broken in the model considered.

9 pages, no figures, accepted for publication in Phys.Lett.A

References in corpus (7)

• New PVLAS results and limits on magnetically induced optical rotation and ellipticity in vacuum
• Asymptotic Reissner-Nordstrom black holes
• Limits on Low Energy Photon-Photon Scattering from an Experiment on Magnetic Vacuum Birefringence
• Vacuum Birefringence in a Rotating Magnetic Field
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• Vacuum Birefringence Caused by Arbitrary Spin Particles

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