The optimized effective potential (OEP) method allows orbital-dependent functionals to be used in density functional theory. Traditionally the orbital-dependent functional of interest has been the Hartree-Fock energy, leading to exact exchange density functional theory. Here we present results that use a generalized valence-bond (GVB) wave function, a multiconfigurational wave function that includes static correlation and dissociates to the proper limits. We demonstrate the effectiveness of the OEP-GVB method by showing the dissociation of and the excitation spectrum of He.
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