No regular purely electric black strings exist in NED recovering the Maxwell limit, but regular cylindrical Bardeen and Hayward analogues are constructed with finite curvature.
This result indicates 13 that, for this Lagrangian, the electromagnetic field becomes superluminal, meaning that photons propagate outside the light cone
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On regular black strings spacetimes in nonlinear electrodynamics
No regular purely electric black strings exist in NED recovering the Maxwell limit, but regular cylindrical Bardeen and Hayward analogues are constructed with finite curvature.