J. Phys. IV France 10 (2000) Pr5-255-Pr5-258
Nonequilibrium effects in electron-ion strongly coupled plasmas. Molecular dynamics simulationG.E. Norman, A.A. Valuev and I.A. Valuev
Moscow Institute of Physics and Technology, Institutsky Per. 9, Dolgoprudny, 141700 Moscow Region, Russia
An attempt is made to simulate non-equilibrium strongly coupled plasmas. Monte-Carlo method is used to obtain equilibrium space configuration of electrons and ions for a given temperature. Then, the Maxwellian velocities for these configurations can be distributed with the same or different temperatures for electrons and ions. Molecular-dynamics simulation starts from these initial configurations. The differences are studied between the properties of equilibrium and non-equilibrium strongly coupled plasmas. Velocity time autocorrelations reveal nonexponential decay in non-equilibrium case contrary to equilibrium one. Dynamic structure factor differs from the one for equilibrium case as well. Non-equïlibrium decreases the electrical conductivity of strongly coupled plasmas remarkably.
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