Orbital Free Average Atom Models for Warm Dense Matter

The calculation of plasma properties in the warm dense matter regime can be a computationally demanding task due to the presence of strongly coupled and degenerate effects. Average atom models provide a fast method for the calculation of plasma properties in this regime. In this work, we present an implementation of an orbital-free average atom model that includes ion correlations outside the ion sphere. We use linear response and Gordon Kim type ion-ion potentials to compute ion structure factors and compare them with other models and experimental data.