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Active space approaches combining coupled-cluster and perturbation theory for ground states and excited states

We evaluate the performance of approaches that combine coupled-cluster and perturbation theory based on a predefined active space of orbitals. Coupled-cluster theory is used to treat excitations that are internal to the active space and perturbation theory is used for all other excitations, which ar...

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Publicado en:Mol Phys
Autores principales: Lange, Malte F., Berkelbach, Timothy C.
Formato: Artigo
Lenguaje:Inglês
Publicado: 2020
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Acceso en línea:https://ncbi.nlm.nih.gov/pmc/articles/PMC7985847/
https://ncbi.nlm.nih.gov/pubmed/33762778
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1080/00268976.2020.1808726
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