平行电磁场中H^-光剥离电子轨道分岔现象的研究

Bifurcation of the orbits of photodetached electron in parallel electric and magnetic fields

当改变能量、位置或场强等参数时，电磁场中里德堡态的原子、分子和离子等体系将出现分岔现象，从而导致波函数在分岔点附近发散，半经典闭合轨道理论不再适用。本文分析并计算了平行电磁场中的H^-光剥离电子轨道的分岔现象，并采用统一近似的方法进行定域修正，从而消除了分岔点的奇异性，得到了合理的光剥离电子流的分布。

The semiclassieal closed orbit theory begins to fail when bifurcation occurs. We studied the bifurcation phenomena of the photodetached electronic orbits of H^- in parallel electric and magnetic fields, and repaired the wave function locally by the uniform approximation method. The calculation gets reasonable results can be compared to the experiment in the future.