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Bivariational principle for an antisymmetrized product of nonorthogonal geminals appropriate for strong electron correlation

Paul A. Johnson,Paul W. Ayers,Stijn De Baerdemacker,Peter A. Limacher,Dimitri Van Neck

Computational and Theoretical Chemistry（2022）

Cited 2|Views6
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Abstract
•Geminal mean-field a starting point for strong electron correlation.•Dual structure makes off-shell Richardson-Gaudin feasible.•Bivariational principle is computationally feasible.•Explicit construction for AGP dual states.
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Key words
Geminal mean-field,Strong electron correlation,Off-shell Bethe vectors,Density matrices,Antisymmetrized geminal power,Quantum chemistry
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