Numerical simulations of electron–ion collisions in UHI plasmas

Abstract

Difficulties of numerical simulations of electron–ion collisions in plasmas irradiated by strong electromagnetic waves are discussed. It is shown that such simulations must have be performed with extremely high precision even in the pair-collision approach. Special attention must be paid to a multi-period collision and small-range dynamics during the collision. To eliminate the problem, a regularization scheme for the dynamic equations is proposed.