Coulomb scattering in plasma revised
等离子体物理
2007-05-23 v1 综合物理
摘要
A closed expression for the momentum evolution of a test particle in weakly-coupled plasma is derived, starting from quantum many particle theory. The particle scatters from charge fluctuations in the plasma rather than in a sequence of independent binary collisions. Contrary to general belief, Bohr's (rather than Bethe's) Coulomb logarithm is the relevant one in most plasma applications. A power-law tail in the distribution function is confirmed by molecular dynamics simulation.
引用
@article{arxiv.physics/0305050,
title = {Coulomb scattering in plasma revised},
author = {S. Gordienko and D. V. Fisher and J. Meyer-ter-Vehn},
journal= {arXiv preprint arXiv:physics/0305050},
year = {2007}
}
备注
5 pages, 2 figures