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Self-consistent-field method including correlation effect for atomic systems. Three- and four-electron atomic systems

✍ Scribed by P. Modrak

Book ID
104577534
Publisher
John Wiley and Sons
Year
1968
Tongue
English
Weight
463 KB
Volume
2
Category
Article
ISSN
0020-7608

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📜 SIMILAR VOLUMES

Self-consistent-field method including c
Self-consistent-field method including correlation effect for two-electron atomic systems
✍ P. Modrak 📂 Article 📅 1967 🏛 Elsevier Science 🌐 English ⚖ 284 KB

The correlation effect for two-electron atomic systems has been taken into account by modifying the potential of the electron interactions appearing in the Hartree-Fock equation. The correlation energies obtained for H-, He, Li+ and Be 2t-differ by less than 20% from the exact values.

Self-consistent field calculations using
Self-consistent field calculations using two-body density functionals for correlation energy component: I. Atomic systems
✍ Moscard�, F.; P�rez-Jim�nez, Angel J. 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 322 KB 👁 1 views

Self-consistent field calculations are done using two-body density functionals for the correlation energy. The corresponding functional derivatives are obtained and used in pseudo-eigenvalue equations analogous to the Kohn᎐Sham ones. The examples studied include atomic systems from He to Ar. The val

Extended Hartree–Fock self-consistent fi
Extended Hartree–Fock self-consistent field with some results for berylliumlike atomic systems
✍ A. P. Jucys; V. M. Lazauskas 📂 Article 📅 1974 🏛 John Wiley and Sons 🌐 English ⚖ 697 KB

## Abstract The general methods of deriving the extended Hartree–Fock equations are described. The rules for going over from the energy expression in the ordinary method of calculation to that in an extended one are reformulated and illustrated. The extended Hartree—Fock equations for berylliumlike

Electronic correlation studies. III. Sel
Electronic correlation studies. III. Self-correlated field method. Application to 2S ground state and 2P excited state of three-electron atomic systems
✍ R. Lissillour; C. R. Guerillot 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 328 KB

## Abstract The self‐correlated field method is based on the insertion in the group product wave function of pair functions built upon a set of correlated “local” functions and of “nonlocal” functions. This work is an application to three‐electron systems. The effects of the outer electron on the i

Electronic correlation studies. II. Self
Electronic correlation studies. II. Self-correlated field method. Application to ground state and first 1P, 3P excited states of two-electron atomic systems
✍ C. R. Guerillot; R. Lissillour 📂 Article 📅 1974 🏛 John Wiley and Sons 🌐 English ⚖ 590 KB

## Abstract An antisymmetric pair function can be built upon two kinds of monoelectronic functions, the former ones being correlated local functions and the second ones nonlocal functions taking external effects into account. This function, brought into the generalised product function procedure by