paper

Nonlinear electrodynamics with the maximum allowable symmetries

arXiv:2007.13878 · doi:10.1016/j.physletb.2020.135840

Abstract

Recently Bandos, Lechner, Sorokin, and Townsend [arXiv:2007.09092] have discovered that Maxwell's electrodynamics can be generalized so that the resulting nonlinear theory preserves both conformal invariance and SO(2) duality-rotation invariance. Their result can be derived in a simpler way.

4 pages; v3. the published version

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