Nonlinear electrodynamics without birefringence
نویسندگان
چکیده
All solutions of the no-birefringence conditions for nonlinear electrodynamics are found. In addition to known Born-Infeld and Plebanski cases, we find a ``reverse Born-Infeld'' case, which has limit Plebanski, an ``extreme-Born-Infeld'' arises as Lagrangian constraint. Only weak-field limit, only extreme-Born Infeld avoid superluminal propagation in constant electromagnetic backgrounds, but all cases have conformal strong-field that coincides with found by Bialynicki-Birula.
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2023
ISSN: ['1127-2236', '1126-6708', '1029-8479']
DOI: https://doi.org/10.1007/jhep01(2023)039