Plasma frequency, parabolic trajectories, and conductivity of nonideal fully ionized plasma

The conductivity of nonideal, fully ionized plasma is calculated under the assumption that there are no straight sections of electron trajectory. The trajectory consists of pieces of parabolic trajectories lying inside the Wigner–Seitz cell. The conductivity in this approximation is proportional to the plasma frequency and is close to the experimentally measured conductivity of a dense cesium plasma.