论文标题
评论：“关于有效哈密顿的特征多项式”
Comment on: "On the characteristic polynomial of an effective Hamiltonian"
论文作者
论文摘要
我们表明，最近其他作者以更清晰，更一般的方式开发了一种基于有效哈密顿量的特征多项式提出的一种方法。我们概述了该方法的实现，并通过计算最接近玩具模型来源的特殊点进行比较。
We show that a method proposed recently, based on the characteristic polynomial of an effective Hamiltonian, had been developed several years earlier by other authors in a clearer and more general way. We outline both implementations of the approach and compare them by means of the calculation of the exceptional point closest to origin for a toy model.
