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Questions concerning exchange-correlation terms in materials modeling calculations.

3 votes
1 answer
94 views

Psi4 functionnals: LDA0

When comparing the energy of the LDA0 and SVWN (Slater exchange and VWN(1980) correlation), I get different results. So what is the LDA0 functional in Psi4? I can't really find literature about it.
mle's user avatar
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4 votes
2 answers
276 views

Dirac exchange energy and X_alpha LDA methods

I want to make a DFT code (by myself) that works in the RKS LDA H2 configuration. This post is a continuation of here. Now by adding the Vosko, Wilk, Nusair correlation I have much better results : B …
mle's user avatar
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