Causal Structure and Birefringence in Nonlinear Electrodynamics
arXiv:1407.0567 · doi:10.1142/S021773231550025X
Abstract
We investigate the causal structure of general nonlinear electrodynamics and determine which Lagrangians generate an effective metric conformal to Minkowski. We also proof that there is only one analytic nonlinear electrodynamics presenting no birefringence.
11 pages, no figures
References in corpus (3)
Cited by in corpus (10)
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