在亚光速区,对处于相对论性振荡的纵等离激元色散方程进行数值求解,得到了朗道阻尼系数的数值解。并在极端相对论性情况下,与解析结果进行比较,结果表明,数值结果与解析结果吻合。同时,将计算范围扩展到适中相对论性情况。
The landau damping rate is obtained by solving the dispersion equation of relativistic longitudinal plasmons with the sub - light - velocity numerically. The result is coincided with the analytical one in the limit of ultra - relativistic, the solutions are expanded to moderate relativistic plasmons.