Richardson-Gaudin states of non-zero seniority II: Single-reference treatment of strong correlation

Paul A. Johnson

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arXiv · 2506.09379

Richardson-Gaudin states of non-zero seniority II: Single-reference treatment of strong correlation

Paul A. Johnson

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Abstract

Strongly correlated systems are well described as a configuration interaction of Slater determinants classified by their number of unpaired electrons. This treatment is however unfeasible. In this manuscript, it is demonstrated that single reference methods built from Richardson-Gaudin states yield comparable results at polynomial cost.

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Paul A. Johnson. 2025-06-11. Richardson-Gaudin states of non-zero seniority II: Single-reference treatment of strong correlation. https://arxiv.org/abs/2506.09379

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