25 citations · 77 across the 6 of their papers we have counts for
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A local-density approximation for the exchange energy functional for excited states : the band gap problem
Moshiour Rahaman, Shreemoyee Ganguly, Prasanjit Samal +3
We present excited states density functional theory (DFT) to calculate band gap for semiconductors and insulators. For the excited states exchange-correlation functional, we use a…
Exploring Foundations of Time-Independent Density Functional Theory for Excited-States
Prasanjit Samal, Manoj K. Harbola
Based on the work of Gorling and that of Levy and Nagy, density-functional formalism for many Fermionic excited-states is explored through a careful and rigorous analysis of the ex…
Density-to-potential map in time-independent excited-state density-functional theory
Prasanjit Samal, Manoj K. Harbola, A. Holas
In light of the recent work by Sahni et al., Harbola, and Gaudoin and Burke, the question of mapping from an excited-state density of a many-electron interacting system to the pote…
Local-density approximation for 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…