Chaotic dynamics and collisionless reconnection at an X-type neutral point

Details Chaotic dynamics and collisionless reconnection at an X-type neutral point Chaotic dynamics and collisionless reconnection at an X-type neutral point

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.506..295h&link_type=abstract

In: Solar variability: from core to outer frontiers. The 10th European Solar Physics Meeting, 9 - 14 September 2002, Prague, Cze

Physics

3

Particle Acceleration, Lyapunov Exponents, Collisionless Reconnection

Scientific paper

The chaotic dynamics of test particle orbits in a magnetic X-type neutral point have been investigated through the use of Lyapunov Characteristic Exponents (LCE), with the aim of solving the Pesin Identity (sum of the positive LCE) as a Monte Carlo integration problem. Treating the identity in this manner allows the phase space of a system to be intelligently sampled for the most chaotic orbits, as these orbits contribute most to the integral. This analysis so far has concentrated on how the chaotic behaviour relates to particle acceleration and energy gain, with future work to examine whether the chaos can produce an "anomalous resistivity" affecting the reconnection rate.

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