Born again

Jan 8, 2024
27 pages
Published in:
  • SciPost Phys. 16 (2024) 5, 124,
  • SciPost Phys. 16 (2024) 124
  • Published: May 13, 2024
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Citations per year

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Abstract: (SciPost Fundation)
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.
Note:
  • 25 pages. References added
  • causality: violation
  • electromagnetic field: nonlinear
  • Born-Infeld model
  • strong field
  • family
  • black hole
  • weak field
  • conformal
  • cosmological model