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cond-mat.other2004
An accurate exchange energy functional in excited-state density functional theory
Prasanjit Samal, Manoj K. Harbola
An exchange energy functional is proposed and tested for obtaining a class of excited-state energies using density-functional formalism. The functional is the excited-state counter…
cond-mat.other2004
Local density approximation for exchange in excited-state density functional theory
Manoj K. Harbola, Prasanjit Samal
Local density approximation for the exchange energy is made for treatment of excited-states in density-functional theory. It is shown that taking care of the state-dependence of th…