Gericke D O, Murillo M S, Schlanges M
Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545.
Phys Rev E Stat Nonlin Soft Matter Phys. 2002 Mar;65(3 Pt 2B):036418. doi: 10.1103/PhysRevE.65.036418. Epub 2002 Mar 7.
Temperature equilibration in dense, strongly coupled plasmas has been investigated without most of the usual simplifying assumptions. A quantum kinetic approach is used that accounts for strong electron-ion collisions through an exact T-matrix treatment of the scattering cross section using a screened interaction. Our results reveal the accuracy of the usual Spitzer formula for Coulomb logarithms larger than about three. Moreover, a simple model based on hyperbolic orbits yields surprisingly accurate results. We also have included equation of state effects to describe realistic plasmas.
在没有大多数常见简化假设的情况下，对致密、强耦合等离子体中的温度平衡进行了研究。采用了一种量子动力学方法，该方法通过使用屏蔽相互作用对散射截面进行精确的T矩阵处理来考虑强电子 - 离子碰撞。我们的结果表明，对于大于约三的库仑对数，常用的斯皮策公式具有准确性。此外，一个基于双曲线轨道的简单模型产生了惊人的准确结果。我们还纳入了状态方程效应来描述实际等离子体。
