论文标题
Rydberg原子方向对碰撞电离横截面的影响
The effect of orientation of Rydberg atoms on their collisional ionization cross section
论文作者
论文摘要
检查了两个相对运动中两个rydberg原子之间的碰撞电离。经典轨迹蒙特卡洛法用于确定与笔离子化相关的横截面。研究了电离横截面对电子的轨道角动量的大小和方向的依赖性以及电子的拉普拉斯 - 拉格 - 朗兹向量的方向。对于给定的角动量，在电离横截面的电离横截面中，可能存在最高和最低电离横截面的方向之间的差异。研究了交换电离的情况，并研究了其对角动量大小的依赖性。
Collisional ionization between two Rydberg atoms in relative motion is examined. A classical trajectory Monte Carlo method is used to determine the cross sections associated with Penning ionization. The dependence of the ionization cross section on the magnitude and the direction of orbital angular momentum of the electrons and the direction of the Laplace-Runge-Lenz vector of the electrons is studied. For a given magnitude of angular momentum, there can exist a difference of a factor of up to $\sim2.5$ in the ionization cross section between the orientation with the highest and the lowest ionization cross section. The case of exchange ionization is examined and its dependence on the magnitude of angular momentum is studied.
