Relativistic Dirac-Fock and many-body perturbation calculations on He, He-like ions, Ne, and Ar

Journal Article · Wed Aug 01 04:00:00 EDT 1990 · Physical Review, A (General Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevA.42.1142· OSTI ID:6485152

Ishikawa, Y ^[1]

---

1. Department of Chemistry, University of Puerto Rico, Rio Piedras, Puerto Rico (USA) Chemical Physics Program, University of Puerto Rico, Rio Piedras, Puerto Rico (USA)

Relativistic Dirac-Fock and diagrammatic many-body perturbation-theory calculations have been performed on He, several He-like ions, Ne, and Ar. The no-pair Dirac-Coulomb Hamiltonian is taken as the starting point. A solution of the Dirac-Fock equations is obtained by analytic expansion in basis sets of Gaussian-type functions. Many-body perturbation improvements of Coulomb correlation are done to third order.

• OSTI ID: 6485152
• Journal Information: Physical Review, A (General Physics); (USA), Journal Name: Physical Review, A (General Physics); (USA) Vol. 42:3; ISSN PLRAA; ISSN 0556-2791
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ATOMIC IONS
CHARGED PARTICLES
CORRELATIONS
ELECTRON CORRELATION
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY RANGE
FLUIDS
FUNCTIONS
GASES
HELIUM
IONS
NEON
NONMETALS
PERTURBATION THEORY
RARE GASES
RELATIVISTIC RANGE
WAVE FUNCTIONS