Strong-Field Electrodynamics

Understand

Strong-Field Electrodynamics (SFE) is Maxwell theory with a certain Lorentz-covariant Ohm's law which uses only the electromagnetic degrees of freedom.

• We show that SFE is {\it semi-dissipative}: while the dissipation rate of the electromagnetic energy is non-negative, it can be exactly zero for non-trivial electromagnetic fields.
• It appears that SFE is well-defined for arbitrary electromagnetic fields.
• It should be possible to calculate the dissipative pulsar magnetosphere and resolve the magnetic separatrix using SFE.