用新公式精确研究碱金属Na_2分子部分电子态的离解能  

Accurate studies on the dissociation energies for some electronic states of alkali-metal Na_2 molecule using new formula

作　　者：舒纯军[1] 姜友嫦[1] 廖红艳 孙卫国[3] 余先伦[1] SHU Chun-Jun;JIANG You-Chang;LIAO Hong-Yan;SUN Wei-Guo;YU Xian-Lun(College of Electronic and Information Engineering,Chongqing Three Gorges University,Wanzhou 404000,China;Chongqing Wanzhou No.2 Senior High School,Wanzhou 404000,China;Institute of Atomic and Molecular Physics,Sichuan University,Chengdu 610065,China)

机构地区：[1]重庆三峡学院电子与信息工程学院,万州404000 [2]重庆市万州第二高级中学,万州404000 [3]四川大学原子与分子物理研究所,成都610065

出　　处：《原子与分子物理学报》2018年第2期210-214,共5页Journal of Atomic and Molecular Physics

基　　金：重庆市教委科学技术研究项目(KJ1501029)

摘　　要：本文使用基于微扰理论的代数方法(AM),研究了碱金属Na_2分子的X^1∑_g^+、6~1∑_g^+、1~3Δ_g、2~3Δ_g、1~3∑_g^-、A^1∑_u^+、7~3Δ_g等七个电子态的离解能;然后使用最近提出的新公式计算了这些电子态的离解能,并分别与离解能的实验值进行了对比.结果表明:使用新公式得到的分子离解能与实验值更为接近.对于那些用实验方法还难以获得其离解能的电子态,该式提供了一种获得其离解能的新方法.The dissociation energies of seven electronic states X 1∑+g、6 1∑+g、1 3Δg、2 3Δg、1 3∑-g、A 1∑+u and 7 3Δg of alkali-metal Na 2 molecule are calculated using the algebraic method(AM)based on the perturbation theory.Then the dissociation energies of these states are calculated using the new analytical formula proposed recently.The results show that the dissociation energies gained by new analytical formula agree excellently with the experimental values.It appears that the dissociation energy of an electronic state whose experimental value is difficult to obtain can be expected using the new formula.

关 键 词：离解能 碱金属 Na2分子 代数方法 

分 类 号：O561[理学—原子与分子物理]