8 citations · 9 across the 10 of their papers we have counts for
4 papers · 1 filter
Dualities of Self-Dual Nonlinear Electrodynamics
Jorge G. Russo, Paul K. Townsend
For any causal nonlinear electrodynamics theory that is "self-dual" (electromagnetic -duality invariant), the Legendre-dual pair of Lagrangian and Hamiltonian densities $\{\m…
Causality and Energy Conditions in Nonlinear Electrodynamics
Jorge G. Russo, Paul K. Townsend
For the general theory of nonlinear electrodynamics (NLED), we prove that causality implies both the Dominant Energy Condition (DEC) and, surprisingly, the Strong Energy Condition…
Causal Self-Dual Electrodynamics
Jorge G. Russo, Paul K. Townsend
Many theories of nonlinear electrodynamics (NLED) that have been proposed in physical contexts involving strong fields are causal for weak fields but acausal for strong fields. We…
Born Again
Jorge G. Russo, Paul K. Townsend
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…