Dynamical Screening Approach to Strongly Correlated Multi-Component Plasmas

A key problem in the description of nonideal, multi-component plasmas is the drastic difference in the r,t-scales. In dusty plasma physics, this problem has been effectively tackled by the 'Dynamical Screening Approach' (DSA), which allows for an accurate description of essential equilibrium and non-equilibrium plasma properties including screening, wakefield oscillations, ion and electron thermal effects as well as collisional and Landau damping [1,2]. Here, the DSA is extended to non-equilibrium situations in partially ionized Warm Dense Matter, where a full dynamic treatment of the pair correlations of the heavy particles is crucial. Considering the strongly coupled ions as classical (or weakly degenerate) and the electrons as quantum degenerate but only weakly correlated, the ion dynamics will be studied on first principles by classical Langevin Dynamcis simulations, while the electrons are treated fully quantum-mechanically taking into account their dynamical screening of the ion-ion interaction in linear response on the basis of an extended Mermin formula [3].\\[4pt] [1] M. Lampe et al., IEEE Trans. Plasma Sci. \textbf{33}, 57 (2005)\\[0pt] [2] P. Ludwig, W.J. Miloch, H. K\"ahlert, and M. Bonitz, to be published (2011)\\[0pt] [3] P. Ludwig, M. Bonitz, H. K\"ahlert, and J.W. Dufty, J. Phys. Conf. Series \textbf{220}, 012003 (2010)