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Order and chaos in the magnetic electron drift vortex mode

Published online by Cambridge University Press:  01 April 1998

ARSHAD M. MIRZA
Affiliation:
Institut für Theoretische Physik, Fakultät für Physik und Astronomie, Ruhr Universität Bochum, D-44780 Bochum, Germany Permanent address: Department of Physics, Quaid-i-Azam University, Islamabad 45320, Pakistan.
PADMA K. SHUKLA
Affiliation:
Institut für Theoretische Physik, Fakultät für Physik und Astronomie, Ruhr Universität Bochum, D-44780 Bochum, Germany
M. Y. YU
Affiliation:
Institut für Theoretische Physik, Fakultät für Physik und Astronomie, Ruhr Universität Bochum, D-44780 Bochum, Germany
LENNART STENFLO
Affiliation:
Department of Plasma Physics, Umeå University, S-90187 Umeå, Sweden

Abstract

Ordered structures as well as chaotic motion of the magnetic electron drift vortex (MEDV) mode in a unmagnetized nonuniform plasma are discussed. In the collisionless limit, the nonlinear MEDV waves can self-organize into dipolar vortices or vortex chains. The latter exist in the regime where dipolar vortices are forbidden. When dissipation is included, the governing equations for the MEDV mode can be cast into the form of the Lorenz equations, so that chaotic solutions can exist.

Type
Research Article
Copyright
1998 Cambridge University Press

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