论文标题

评论:“用动能分区方法求解多体Schrödinger方程”,Ann。Phys。388(2018)54-68Y。H。Chen和S. D. Chao

Comment on: "Solving many-body Schrödinger equations with kinetic energy partition method'', Ann. Phys. 388 (2018) 54-68 by Y-H. Chen and S. D. Chao

论文作者

Fernández, Francisco M.

论文摘要

我们通过将其应用于两个可分离的量子力学模型的应用,讨论了动能分区方法(KEP)的性能的最新测试。我们认为,基准模型之一非常简单,用于测试任何现实的近似方法,并且几乎任何合理的方法都会产生更好的结果。在第二个示例中,我们的确切基准特征值与作者选择的比较非常不同,这对其KEP方法的准确性产生了怀疑。

We discuss a recent test of the performance of the kinetic energy partition method (KEP) through its application to two separable quantum-mechanical models. We argue that one of the benchmark models is exceedingly simple for testing any realistic approximate method and that almost any reasonable approach yields better results. In the second example our exact benchmark eigenvalues disagree considerably with those chosen by the authors for comparison, which casts doubts on the accuracy of their KEP approach.

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