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arXiv · 2401.04167

Born Again

Jorge G. Russo·Paul K. Townsend
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Abstract

Born's original 1933 theory of nonlinear electrodynamics (in contrast to the later Born-Infeld theory) is acausal for strong fields. We explore the issue of strong-field causality violation in families of theories containing Born and/or Born-Infeld, and many variants that have been previously proposed in contexts that include cosmology and black hole physics. Many of these variants are acausal and hence unphysical. A notable exception is the modified Born-Infeld theory with ModMax as its conformal weak-field limit.

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Jorge G. Russo, Paul K. Townsend. 2024-05-22. Born Again. https://arxiv.org/abs/2401.04167

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