摘要
Using multi-configuration Dirac-Fock and relativistic configuration interaction methods with high-order corrections, we report our precise calculation results of the fine-structure energy levels of the ground-state configuration of OⅡ（1s^22s^22p^3）. Our calculated fine-structure splittings of ^2D3/2,5/2 and ^2p1/2,3/2 are abnormal We elucidate that the transverse （Breit） interaction, i.e. relativistic retardation effect, plays an important role for the abnormal fine-structure splittings. Our calculation results are in good agreement with experimental measurements.
Using multi-configuration Dirac-Fock and relativistic configuration interaction methods with high-order corrections, we report our precise calculation results of the fine-structure energy levels of the ground-state configuration of OⅡ（1s^22s^22p^3）. Our calculated fine-structure splittings of ^2D3/2,5/2 and ^2p1/2,3/2 are abnormal We elucidate that the transverse （Breit） interaction, i.e. relativistic retardation effect, plays an important role for the abnormal fine-structure splittings. Our calculation results are in good agreement with experimental measurements.
基金
Supported by the Ministry of Science and Technology and Ministry of Education of China, the Key Grant Project of the Ministry of Education of China under Grant No 306020, the National Natural Science Foundation of China under Grant No 10314010, the National High-Tech ICF Committee in China, and the Yin-He Super-computer Center, Institute of Applied Physics and Mathematics, Beijing, China, and the State Key Basic Research Programme of China under Grant Nos 2001CB610508 and 2006CB921408.
