Hartree-fock density matrix equation: Open-shell systems
โ Scribed by C. Frishberg; L. Cohen; P. Blumenau
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 179 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0020-7608
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โฆ Synopsis
We present a density matrix formulation of the spin-polarized Hartree-Fock method. The Hartree-Fcck density matrix equation is generalized to treat open-shell systems that can be described by a single determinant. The "eigenmatrix" equation breaks up into two equations, one for the density matrix describing the electrons with a-spin, the other for the @-spin density matrix. As an example, the resulting equations are solved for the lithium atom by the method of inverse iteration.
๐ SIMILAR VOLUMES
## Abstract In this paper a calculation of the static quadrupole polarizabilities and the shielding factors of the atoms and ions of the 2__p__ open shell systems is presented. A fully coupled HartreeโFock method using the Roothaan formalism is adopted. Calculations have been done for the ground as