The Kohn-Sham potential (V KS (𝐫)) depends on the density through the exchangecorrelation potential, therefore, must be solved self-consistently as discussed in the next section. To find the ground state density, ρ 0 (𝐫), which corresponds to the energy minimum of the electronic system, we can use N single-electron Schrodinger equation with Kohn-Sham potential as given below;