RELATIVISTIC MANY-BODY CALCULATIONS OF ENERGIES OFn= 3 STATES FOR THE BORON ISOELECTRONIC SEQUENCE,Z= 6–30
RELATIVISTIC MANY-BODY CALCULATIONS OF ENERGIES OFn= 3 STATES FOR THE BORON ISOELECTRONIC SEQUENCE,Z= 6–30
复制标题
DOI：
10.1006/adnd.1998.0777
复制
发表时间：
1998-07
影响因子：
1.8
通讯作者：
U. Safronova;W. R. Johnson;M. Safronova
中科院分区：
文献类型：
--
作者：
U. Safronova;W. R. Johnson;M. Safronova
摘要 对于核电荷 Z 在 6-30 范围内的 B 类离子，2s2(1S)3l、2s2p(1P)3l、2s2p(3P)3l、2p2(3P)3l、2p2(1D)3l 和 2p2(1S)3l 态的能量，其中 l = s、p 和 d，在相对论中被确定为二阶从冻结核心狄拉克-福克基础开始的多体微扰理论。这些微扰理论计算包括库仑和布赖特算子对对角和非对角矩阵元素的一阶和二阶图贡献。 Breit 相互作用的频率依赖性的修正以最低顺序考虑。对能量的兰姆位移校正也包含在最低阶中。将三电子相互作用的贡献与一电子和二电子相互作用的贡献进行比较。与其他理论计算和实验数据进行了比较。即使对于低 Zions，我们也获得了良好的术语分割协议。
Abstract Energies of the 2s2(1S)3l, 2s2p(1P)3l, 2s2p(3P)3l, 2p2(3P)3l, 2p2(1D)3l, and 2p2(1S)3l states, withl = s,p, andd, for B-like ions with nuclear chargesZin the range 6–30 are determined to second order in relativistic many-body perturbation theory starting from a frozen-core Dirac–Fock basis. These perturbation theory calculations include the first- and second-order diagram contributions from the Coulomb and Breit operators for diagonal and nondiagonal matrix elements. Corrections for the frequency dependence of the Breit interaction are taken into account in lowest order. The Lamb-shift correction to the energies is also included in lowest order. Contributions of the three-electron interaction are compared with contributions of the one- and two-electron interactions. Comparisons are made with other theoretical calculations and with experimental data. We obtain excellent agreement for term splitting, even for low-Zions.