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hep-th2025
Simplified self-dual electrodynamics
Jorge G. Russo, Paul K. Townsend
We present a new formulation of self-dual nonlinear electrodynamics in which interactions are determined by an auxiliary-field potential, with causality ensuring a unique solution…
hep-th2025
Causal chiral 2-form electrodynamics
Jorge G. Russo, Paul K. Townsend
Generic nonlinear theories of chiral 2-form electrodynamics allow superluminal propagation in some stationary homogeneous backgrounds and are therefore acausal. We find a simple pa…