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Non-cartesian compatibility, and spin symmetrization - #105

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Non-cartesian compatibility, and spin symmetrization#105
jrm874 wants to merge 2 commits into
Qiskit:mainfrom
jrm874:main

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@jrm874

@jrm874 jrm874 commented Dec 22, 2025

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Adds an interface that allows to run the projection and diagonalization without assuming the cartesian product structure of the subspace. Additionally, it prevents incorrect lists of strings from being passed to DICE, which causes unexpected results. Lastly, it adds an option to symmetrize pairs of alpha-beta determinants, as suggested by @kevinsung

There is the accompanying pull request to modify how DICE reads input files and combines the determinants.

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