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Energy coupling among the degrees of freedom in an electron–positron plasma

Published online by Cambridge University Press:  12 January 2010

WENMIN ZHANG ,
M. Y. YU ,
A. R. KARIMOV  and
L. STENFLO
WENMIN ZHANG
Affiliation:
Institute for Fusion Theory and Simulation, Department of Physics, Zhejiang University, 310027 Hangzhou, China (wmzhanggm@gmail.com)
M. Y. YU
Affiliation:
Institute for Fusion Theory and Simulation, Department of Physics, Zhejiang University, 310027 Hangzhou, China (wmzhanggm@gmail.com) Institut für Theoretische Physik I, Ruhr-Universität Bochum, D-44780 Bochum, Germany
A. R. KARIMOV
Affiliation:
Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13/19, Moscow 127412, Russia
L. STENFLO
Affiliation:
Department of Physics, Linköping University, SE-58183 Linköping, Sweden
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Abstract

Nonlinear coupling of the motion in the three spatial degrees of freedom of a cold fluid electron–positron plasma is investigated. Exact solutions describing expanding flows with oscillations are obtained. It is found that the energy in the irrotational flow component is in general transferred to the rotational components, but not in the reversed direction. Furthermore, since the density evolution need not be related to all the three flow components, oscillations in one or two of the flow fields can be purely electromagnetic and are not accompanied by density oscillations.

Type
Papers
Information
Journal of Plasma Physics , Volume 76 , Special Issue 3-4: In Honor of Professor Padma Kant Shukla on the Occasion of His 60th Birthday , August 2010 , pp. 329 - 335
Copyright
Copyright © Cambridge University Press 2010

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