变分法在计算量子物理基态氦原子能量中的应用

The Application of Variational Principle for Calculating Energy of the Atom He in Ground State of Quantum Mechanics

对基态氦原子的波函数和能量的传统计算方法是自恰场法和微扰论 ,其计算过程的自恰场法十分繁难 ,而结果又是数据表 ,逼近成解析式也比较复杂。采用变分法 ,以解析式的形式进行讨论 ,其用起来又比较方便 。

The wave function and the energy of the atom He was calculated traditionally by self consistent field and perturbation theory in its ground state. But the self consistent field approximation is very complex and the result is a kind of data table. This paper explores the energy of the atom He by variational principle in analytic function easily, however the result is more approximate to the experimental value than that by perturbation.