Exchange-correlation energies and correlation holes for some two- and four-electron atoms along a nonlinear adiabatic connection in density functional theory

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Exchange-Correlation Energies and Correlation Holes for Some Two- and Four-Electron Atoms along a Nonlinear Adiabatic Connection in Density Functional Theory

The adiabatic connection procedure of density functional theory has been applied to twoand four-electron atomic systems by following a nonlinear path that leads from the noninteracting Kohn–Sham reference system to the physical one. We have calculated the exchange and correlation energies as the interaction strength is increased, as well as the densities of the corresponding correlation holes. ...

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Correlation energies for some two- and four-electron systems along the adiabatic connection in density functional theory

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ژورنال

عنوان ژورنال: International Journal of Quantum Chemistry

سال: 2002

ISSN: 0020-7608,1097-461X

DOI: 10.1002/qua.10395