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Contribution of collective excitations to the surface energy of metals

✍ Scribed by R.G. Barrera; E. Gerlach


Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
229 KB
Volume
14
Category
Article
ISSN
0038-1098

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Analytical differentiation of the energy
✍ JΓΌrgen Gauss; Dieter Cremer πŸ“‚ Article πŸ“… 1989 πŸ› Elsevier Science 🌐 English βš– 420 KB

Formulae for the analytical differentiation of the energy contribution due to triple excitations (T) within quadratic conftguration interaction (QCI) theory are derived. Combining these formulae with previously derived formulae for the evaluation of analytical first derivatives for QCI theory with s