Nonequilibrium effects in electron-ion strongly coupled plasmas. Molecular dynamics simulation

Abstract
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.