Three-dimensional Hall magnetic reconnection

Abstract

The relation between reconnected flux, the parallel electric field, and the reconnection rate in a three-dimensional kinetic simulation of magnetic reconnection Phys. Plasmas 20, 122105 (2013); 10.1063/1.4833675 Magnetohydrodynamic study of three-dimensional instability of the spontaneous fast magnetic reconnection Phys. Plasmas 16, 052903 (2009); 10.1063/1.3095562The Hall dynamo effect and nonlinear mode coupling during sawtooth magnetic reconnection

Dissipation in relativistic pair-plasma reconnection

“…The figure shows two clear trends: Runs with more relativistic particles tend to evolve slower than those with fewer relativistic computations ͑when the electric field is measured by the product of nonrelativistic Alfven speed and magnetic field͒, and runs with a guide field reconnect slower than those without. The latter phenomenon is well known, 18,25 18,21 and are likely due to the higher effective inertia of relativistic compared to nonrelativistic particles. The net effect is a reduction of the effective Alfven speed, which reduces the overall reconnection rate.…”

Three-dimensional, Impulsive Magnetic Reconnection in a Laboratory Plasma

“…The second row of plots shows the disruption phase; the green region broadens, first at small y by t = 331.6 µs and then at large y by t = 333.2 µs. Thus the disruption process is not uniform in y, but [14,15,20,29]. The proposed physical picture of the disruption may equivalently describe the propagation of the "reconnection wave" outlined by Huba and Rudakov [14].…”

“…Thus the disruption process is not uniform in y, but [14,15,20,29]. The proposed physical picture of the disruption may equivalently describe the propagation of the "reconnection wave" outlined by Huba and Rudakov [14]. In this case, the v ey gradients and 3-D field line structure are not part of the initial condition; they are instead due to an externally imposed magnetic field perturbation.…”

Hall Magnetohydrodynamics - A Tutorial

“…A number of researchers are attacking the reconnection problem in 3D using particle [32,33], hybrid [34], and fluid codes [35]. We now present some results of a 3D simulation study of Hall reconnection physics using VooDoo [36].…”

“…The theory has been successfully applied to the structuring of sub-Alfvénic plasma expansions [1,2,3,4,5,6,7] and to rapid magnetic field transport in plasma opening switches [8,9,10,11,12,13,14,15,16,17]. In recent years it has become evident that Hall physics plays a critical role in magnetic reconnection processes [18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36] and this has spurred renewed interest in this subject. Generally speaking, the theory is applicable to phenomena occurring on length scales shorter than an ion inertial length, and time scales shorter than an ion cyclotron period.…”