摘要
对coupled-pair many-electron theory(CPMET)展开中的非线性四体效应采取了近似处理,用角动量图技术和两体函数方法得到了适用于一般闭壳层原子的径向微分方程。然后以X_a模型作为零级近似,通过迭代求解成功地计算了Ne原子基态的任意阶相相关能,从而说明至少对于闭壳层原子体系而言,用X_a模型作零级近似同样可以进行成功的多体理论计算。
Making approximation methods for the non-linear terms in the couplqd-pair-many-electron theory (CFMET) , we get a radial differential equation suitable for, general closed-shell atoms, by, using; Angular-Momentum Graphs, and pair functions, then we calculate the ground state correlation energy of Ne to high order with the Xa model as zeroth-order approximation. From the results calculated by us we further show that, by taking Xa model as zeroth-order approximation, successful atomic many-body calculation can also be made at least for closed-shell atoms.
出处
《原子与分子物理学报》
CAS
CSCD
北大核心
1991年第4期2039-2046,共8页
Journal of Atomic and Molecular Physics
