Numerical solutions of the Schrödinger equation for the ground lithium by the finite element method
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摘要
In the present paper, the authors transfers the nine-dimensional Schrödinger equation of the ground lithium into a six-dimensional partial differential equation. A six-dimensional variational formulation is also derived from the weak energy equation. A kind of six-dimensional finite element methods are constructed to solve the transferred energy equation. With very coarse mesh, the authors get highly precise approximate eigenvalue. The relative error of approximate eigenvalue is order of 10−5 in atomic unit.
论文关键词:Finite element method,Eigenvalue problem,Schrödinger equation
论文评审过程:Available online 18 July 2003.
论文官网地址:https://doi.org/10.1016/S0096-3003(03)00664-7