标题： 磁场中原子光电子能谱的基于绝热基的R-矩阵传播方法 显示英文标题

标题： R-matrix propagation with adiabatic bases for the photoionization spectra of atoms in magnetic fields

摘要： 在磁场中原子的光电离谱是通过结合 R-矩阵传播与局域绝热基展开来计算的。 与之前的方法相比，这种方法显著提高了速度，并扩展了可进行计算的能量范围，使得在任意磁场强度下都能获得扩展能量范围内的精确的部分截面和总截面。 此外，所有感兴趣的原子的截面可以在单次计算中同时得到。 多通道量子亏损理论允许对连续区中的共振结构进行详细分析。 展示了在实验室和天体物理场强范围内多种原子的计算截面。 显示英文摘要

摘要： The photoionization spectrum of an atom in a magnetic field is calculated by combining R-matrix propagation with local adiabatic basis expansions. This approach considerably increases the speed and the energy range over which calculations can be performed compared to previous methods, allowing one to obtain accurate partial and total cross sections over an extended energy range for an arbitrary magnetic field strength. In addition, the cross sections for all atoms of interest can be calculated simultaneously in a single calculation. Multichannel quantum defect theory allows for a detailed analysis of the resonance structure in the continuum. Calculated cross sections for a range of atoms in both laboratory and astrophysical field strengths are presented.