Pseudopotential-LDA

Valence charge density contour maps from pseudopotential (LDA) calculations are presented in [4, 5, 12] see also [7]. 

The starting point in this chain of equations is the Hartree (H) approximation, in which case 2 =0. An approximate "Hartree" calculation is shown in Fig.4 for Si. This calculation is "approximate" in that it is not a self-consistent H calculation, but in-stead -S based on a self-consistent pseudopotential-LDA calculation. After achieving selfconsistency the LDA exchange-correlation V was dropped in the extraction of the eigenvalues and... 

After Ref. (48). LDA-PP local density approximation - pseudopotential. LDA-SIC-PP local density approximation — selfinteraction corrected pseudopotential. 

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