Collisionless Magnetic Reconnection via Alfven Eigenmodes

Details Collisionless Magnetic Reconnection via Alfven Eigenmodes Collisionless Magnetic Reconnection via Alfven Eigenmodes

2009-07-04

arxiv.org/abs/0907.0794v1

Phys. Rev. Lett. 102, 245003, 2009

Physics

Plasma Physics

Scientific paper

10.1103/PhysRevLett.102.245003

We propose an analytic approach to the problem of collisionless magnetic reconnection formulated as a process of Alfven eigenmodes' generation and dissipation. Alfven eigenmodes are confined by the current sheet in the same way that quantum mechanical waves are confined by the tanh^2 potential. The dynamical time scale of reconnection is the system scale divided by the eigenvalue propagation velocity of the n=1 mode. The prediction of the n=1 mode shows good agreement with the in situ measurement of the reconnection-associated Hall fields.

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