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arXiv · 2211.07072

Improving procedure for the reconstruction of an effective secular equation

Yong Zheng
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Abstract

The usual implement procedure for the reconstruction of secular equation for an effective Hamiltonian has been discussed and improved. A relative characteristic polynomial has been introduced for the effective Hamiltonian, to obtain a simplified effective-secular-equation which is equivalent to the one obtained in the usual reconstruction procedure but shows great convenience and effectiveness, especially when the $P$-space dimension is large.

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Yong Zheng. 2022-11-14. Improving procedure for the reconstruction of an effective secular equation. https://arxiv.org/abs/2211.07072

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