Strong-Field Electrodynamics
| dc.creator | Gruzinov, Andrei | |
| dc.date | 2008-02-12 | |
| dc.date.accessioned | 2026-07-07T09:20:25Z | |
| dc.date.available | 2026-07-07T09:20:25Z | |
| dc.description | 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. We show that SFE reduces to Force-Free Electrodynamics (FFE) in the large conductivity limit. In the regions where the ideal FFE 4-current is space-like, SFE predicts small dissipative corrections. In the regions where the ideal FFE 4-current is time-like, SFE predicts a zero correction. This indicates that bright pulsars radiate primarily from the magnetic separatrix. | |
| dc.description | 6 pages, 1 figure | |
| dc.identifier | https://arxiv.org/abs/0802.1716 | |
| dc.identifier | http://arxiv.org/abs/0802.1716 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/154718 | |
| dc.subject | Astrophysics | |
| dc.title | Strong-Field Electrodynamics | |
| dc.type | text |