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Nonlinear electrodynamics with the maximum allowable symmetries (2007.13878v3)
Published 27 Jul 2020 in hep-th
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.
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