SEARCH Articles Figures Tables Adiabatic path single excited state Excited States of a Single Bond Excited states, single discussion Excited-state singly substituted Helium singly excited states Nondegenerate single excited state Single excited state Single excited state approach Single-Particle Eigenvalues and Excited-State Energies Singly excited Singly excited state Theory for a single excited state Time-Independent Theories for a Single Excited State Time-independent theories, single excited state Time-independent theories, single excited state excitation energies