A program for performing angular integrations for transition operators

Abstract The MCHF_MLTPOL program performs the angular integrations necessary for expressing the matrix elements of transition operators, E1, E2, …, or M1, M2, …, as linear combinations of radial integrals. All matrix elements for transitions between two lists of configuration states will be evaluated. A limited amount of non-orthogonality is allowed between orbitals of the initial and final state. Title of program: MCHF_MLTPOL Catalogue Id: ACBA_v1_0 Nature of problem This program is part of the MCHF atomic structure package [1] for bound state systems and performs the angular integrations for electric E1, E2, ..., Elambda and/or magnetic M1, M2,..., Mlambda transition operators. Versions of this program held in the CPC repository in Mendeley Data ACBA_v1_0; MCHF_MLTPOL; 10.1016/0010-4655(91)90140-G This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)

摘要 MCHF_MLTPOL程序可完成所需的角积分运算，将跃迁算符（如E1、E2……或M1、M2……）的矩阵元表示为径向积分的线性组合。本程序可计算两组组态态之间所有跃迁的矩阵元，且允许初态与末态轨道间存在有限程度的非正交性。
程序名称：MCHF_MLTPOL
目录编号：ACBA_v1_0
问题本质：本程序属于面向束缚态体系的MCHF原子结构程序包[1]，用于计算电E1、E2……Elambda以及磁M1、M2……Mlambda类跃迁算符对应的角积分。
Mendeley数据集中CPC仓库内收录的本程序版本：ACBA_v1_0；MCHF_MLTPOL；10.1016/0010-4655(91)90140-G
本程序源自贝尔法斯特女王大学维护的CPC程序库（1969-2018年）。