平行电磁场中He原子回归谱中的排斥势效应  

Centrifugal barrier effect on the recurrence spectra of helium M=1 atoms in parallel electric and magnetic fields

作　　者：王文鹏[1] 李洪云[1] 徐学友[1] 林圣路[1] 

机构地区：[1]山东师范大学物理与电子科学学院,济南250014

出　　处：《原子与分子物理学报》2008年第1期41-46,共6页Journal of Atomic and Molecular Physics

基　　金：国家自然科学基金(10774093;10374061)

摘　　要：利用包括实散射的闭合轨道理论和分区自洽迭代的计算方法，研究了在标度能量ε^-=-0．03和标度电场f^-=0．01的情况下He（M=1）原子在平行电磁场中的闭合轨道和光吸收的回归谱．与相同条件下的He（M=0）原子的回归谱相比较，由于z轴处的排斥势，减小了原子实短程衍射效应和电子的关联，使谱变得简单，这与实验的结果一致．We put forward a recurrence spectra of helium M = 1 atoms in a parallel electric and magnetic fields with a scaled energy ε^- = - 0.03 and constant scaled electric field at f^- = 0.01 in accordance with the closedorbit theory and spatial-splitting consistent method. The recurrence spectra of helium M = 1 atoms are compared with M= 0 in the same conditions. Because of the centrifugal barrier on z axis, the effects of diffraction of ionic core and the correlation of electrons are weakened. This makes the spectra considerably simple, which is completely consonant with the experiments.

关 键 词：闭合轨道理论 回归谱 排斥势 分区自洽迭代 实散射 

分 类 号：O562.3[理学—原子与分子物理]