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Excitation energies of BH, CH2 and Ne in full configuration interaction and the hierarchy CCS, CC2, CCSD and CC3 of coupled cluster models

Cluster ScienceLocalized Excited StatePhysicsNatural SciencesHierarchy CcsFull Configuration InteractionCluster ChemistryComputational ChemistryChemistryQuantum ChemistryExcitation EnergiesAb-initio MethodMany-body Problem