群代数方法计算Mg₂、Xe₂、He₂分子的振动—转动能谱

群代数方法计算Mg 2 、Xe 2 、He 2 分子的振动—转动能谱 APPLICATION OF THE ALGEBRAIC APPROACH TO THE DESCRIPTION OF THE SPECTRA OF DIATOMIC MOLECULES Mg 2 , Xe 2 AND He 2 贺英侠 Ho Yingxia and Hu Chengzheng first-author 胡承正 本文利用群代数方法计算了处在电子基态的Mg 2 ,Xe 2 ,和处在电子第一激发态的He 2 的振动—转动能谱,并与传统方法进行了比较。在考虑多体项的影响下,对描写双原子的哈密顿量进行了修正,并计算了修正后的期待值、改善了代数方法与传统方法得到的结果的符合程度。 In this paper the diatomic molecule speclra are calculated for the X’∑ q + state of Mg 2 , X’∑ q + state of Xe 2 and A’∑ u + state of He 2 by making use of the algebraic techniques. The comparisions between classical and algebraic results are made. Finally, when the higher order terms included in the Hamiltonian are taken into account, We have found the algebraic results are in better agrement with the classical. 1986-04-01 2021-04-01 4