Transport and dielectric properties of dense ionized matter from the average-atom RESEOS model

Electron transport properties of warm and hot dense matter are calculated using two versions of the average-atom approach: Liberman's model and the neutral Wigner-Seitz-sphere model. Electrical conductivity calculations employed the extended Ziman formula, the relaxation-time approximation, the Zubarev method, and the Kubo-Greenwood formula. Thermal conductivities were evaluated in the relaxation-time approximation. The results obtained are in good agreement with experimental data and ab initio calculations. The origin of nonphysical features appearing in the DC electrical and thermal conductivities calculated with the relaxation-time approximation and the Zubarev method is analyzed. AC conductivity and dielectric properties of dense ionized matter are obtained from the radiative opacity data calculated using the RESEOS model.