Effective Coulomb Logarithm for One Component Plasma

TL;DR

This paper proposes an analytical expression for the effective Coulomb logarithm in one-component plasma, extending classical formulas to strongly coupled regimes and aligning well with numerical simulations, with implications for complex plasma systems.

Contribution

The paper introduces a new analytical approximation for the Coulomb logarithm that works in strongly coupled plasma regimes, enhancing the understanding of plasma diffusion properties.

Findings

The proposed formula agrees with numerical simulations across coupling regimes.

It extends classical diffusion models to strongly coupled plasmas.

Discusses relevance to Yukawa systems and complex plasmas.

Abstract

An expression for the effective Coulomb logarithm in one-component-plasma is proposed, which allows to extend the applicability of the classical formula for the self-diffusion coefficient to the strongly coupled regime. The proposed analytical approximation demonstrates reasonable agreement with previous numerical simulation results. Relevance to weakly screened Yukawa systems (and, in particular, complex plasmas) is discussed.