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Equilibrium properties of a rotating plasma: differences between the fluid velocity and the drift velocity

Published online by Cambridge University Press:  13 March 2009

Hudong Chen  and
David Montgomery
Hudong Chen
Affiliation:
Department of Physics and Astronomy, Dartmouth College, Hanover, New Hampshire 03755, U.S.A.
David Montgomery
Affiliation:
Department of Physics and Astronomy, Dartmouth College, Hanover, New Hampshire 03755, U.S.A.
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Abstract

An equilibrium state of a magnetized non-neutral plasma confined in a smooth cylindrically symmetric container is obtained. The particle number of each species is fixed, and total energy and total canonical angular momentum are conserved in the system. Moreover, the most probable state satisfies the stationary Vlasov equation exactly. The key finding from this result is that the E × B drift velocity can be significantly different from the true fluid velocity, which always corresponds here to a rigid rotation. It is suggested that this difference may also be experimentally important in situations that are not in thermal equilibrium.

Type
Research Article
Information
Journal of Plasma Physics , Volume 49 , Issue 3 , June 1993 , pp. 341 - 356
Copyright
Copyright © Cambridge University Press 1993

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