Abstract
Electromagnetic field configurations with vanishing Lorentz force density are known as force-free and appear in terrestrial, space, and astrophysical plasmas. We explore a general method for finding such configurations based on formulating equations for the field lines rather than the field itself. The basic object becomes a foliation of spacetime or, in the stationary axisymmetric case, of the half-plane. We use this approach to find some new stationary and axisymmetric solutions, one of which could represent a rotating plasma vortex near a magnetic null point.
Original language | English (US) |
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Article number | 124012 |
Journal | Physical Review D |
Volume | 94 |
Issue number | 12 |
DOIs | |
State | Published - Dec 8 2016 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics