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On a density functional theory of van der Waals forces

✍ Scribed by Robert A. Harris

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
343 KB
Volume
33
Category
Article
ISSN
0009-2614

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✦ Synopsis

We use the density functional theory to invest&te the ground state cner,g of 5 psir of intemcting electronic syslcr;ls ;ct large distanCcs from one another. We prove that a simple mean field approximation to the electron density is sufficient to determine the6(1/R3) and(i(l/R$) behavior of the ground state energy.

πŸ“œ SIMILAR VOLUMES

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Prospects for a van der Waals density functional
✍ John F. Dobson πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 125 KB

The van der Waals vdW or dispersion interaction between distant sections of a molecular or condensed matter system contributes part of the correlation energy. This dispersion part is missed, or is given at best unreliably, by the usual local and gradient functionals for the exchange᎐correlation ener

Toward the description of van der Waals
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✍ Lein, M.; Dobson, J. F.; Gross, E. K. U. πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 201 KB πŸ‘ 2 views

On the basis of the adiabatic connection formula we propose several approximations for the total correlation energy functional, which, in the limit of two separated neutral subsystems, correctly reproduce the van der Waals R y6 behavior. We have calculated the corresponding van der Waals coefficient