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Transient effects in strongly correlated nonequilibrium plasmas

Published online by Cambridge University Press:  09 March 2009

G. Armbrüster ,
B. Majer ,
U. Reimann  and
C. Toepffer
G. Armbrüster
Affiliation:
Universität Erlangen, Institut fur Theoretische Physik, Eiiangen, Germany
B. Majer
Affiliation:
Universität Erlangen, Institut fur Theoretische Physik, Eiiangen, Germany
U. Reimann
Affiliation:
Universität Erlangen, Institut fur Theoretische Physik, Eiiangen, Germany
C. Toepffer
Affiliation:
Universität Erlangen, Institut fur Theoretische Physik, Eiiangen, Germany
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Abstract

We study strongly correlated plasmas far from equilibrium with the ultimate aim of describing the cooling of heavy ion beams by electrons. With the help of molecular dynamics (MD) computer simulations, we conclude that the relaxation of a two-component plasma depends strongly upon the preparation of the initial configuration. If the initial data have no intercomponent correlations, such will build up during the evolution so that the intercomponent potential energy decreases while the kinetic energy increases. These effects become more pronounced for strongly coupled plasmas and limit the efficiency of electron cooling. We cannot confirm certain mean-field predictions on the influence of an external magnetic field on the cooling process. A study of the relaxation of anisotropic velocity distributions for a one-component plasma shows deviations from meanfield results for strongly coupled plasmas.

Type
Regular Papers
Information
Laser and Particle Beams , Volume 10 , Issue 2 , June 1992 , pp. 365 - 374
Copyright
Copyright © Cambridge University Press 1992

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References

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