SZ-QCT relaxes the small-generator limit of prior seniority-zero methods by retaining approximate four-body operators, yielding sub-millihartree accuracy for strongly correlated systems at O(N^8) scaling.
A coupled-cluster approach to the many-body perturbation theory for open-shell systems
2 Pith papers cite this work, alongside 112 external citations. Polarity classification is still indexing.
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Negative-energy states provide a state-dependent correction up to 30% of the total interelectronic-interaction contribution to the g-factor of lithium-like ions for Z=4-20.
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Seniority-zero Quadratic Canonical Transformation Theory
SZ-QCT relaxes the small-generator limit of prior seniority-zero methods by retaining approximate four-body operators, yielding sub-millihartree accuracy for strongly correlated systems at O(N^8) scaling.
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The critical role of negative-energy states in the Land\'{e} $g$-factor of lithium-like ions
Negative-energy states provide a state-dependent correction up to 30% of the total interelectronic-interaction contribution to the g-factor of lithium-like ions for Z=4-20.