Radiative and transport properties of ions in strongly coupled plasmas

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Abstract
A simple model is proposed for the dynamical effects of a strongly coupled plasma on the center-of-mass and internal coordinates of an ion. The ion is coupled to the plasma through monopole and dipole interactions. The radiative and transport properties of the ion are intimately related since both are governed by the electric microfield at the ion. A unified description of both types of properties is obtained by a formulation focused on the dynamics of the electric microfield. The velocity autocorrelation function, self-structure factor, and electric field correlation function are all in good agreement with computer simulation results, even for strongly coupled plasmas. The effects of perturbing ion motion on Lyman-α and Lyman-β spectral line profiles are calculated. Again, good agreement with computer-simulation results is obtained.