Performance of Hyperspherical Harmonic Expansionon the Low-lying P and D States of Helium Atom

作     者：WANG Yi-xuan, ZHUANG Bing-you and LIU Cheng-bu (School of Chemistry, Shandong University, Jinan 250100, China) (Department of Chemistry, Weifang College, Weifang 261043, China) 

作者机构：山东大学 山东 济南 250100 潍坊高等专科学校 山东 潍坊 2610043 

出 版 物：《Chemical Research in Chinese Universities》 (高等学校化学研究（英文版）)

年 卷 期：2000年第16卷第4期

页      面：351-355页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 0817[工学-化学工程与技术] 08[工学] 070203[理学-原子与分子物理] 0703[理学-化学] 0714[理学-统计学（可授理学、经济学学位）] 070301[理学-无机化学] 0701[理学-数学] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China(No. 29703003) 

主　　题：Hyperspherical coordinate Helium atom Excited state 

摘      要：The wave functions of the n1,3p (n=2, 3, 4) and the n 1,3D (n=3, 4, 5 ) low-lying states of the helium atom are expanded into the complete sets of the symmetrically adapted basis functions from hyperspherical harmonic functions in the angle part and of generalized Laguerre functions in the radial part respectively, and are then augmented by the simplest type of Jastrow correlation factor to incorporate electron-nucleus cusp only. The excellent agreement between the present nonrelativistic eigen-energies and those from the sophisticated configuration interaction (CI) method for the examined states indicates that the hyperspherical harmonic method can also be applied to the P and the D excited states of the helium atom.