Electron-electron correlation ofstates of the helium atom
- 1 January 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 39 (1) , 9-18
- https://doi.org/10.1103/physreva.39.9
Abstract
A nonadiabatic variational procedure is used to diagonalize the Hamiltonian of the helium atom to obtain the states. A partial-wave analysis of the wave functions has been made. The one-body densities and the shape densities have been investigated. Detailed information on electron-electron correlation has been obtained. The K-classification scheme has been recovered. The strong radial-angular correlation regions together with the associated twin nodes have been discovered.
Keywords
This publication has 10 references indexed in Scilit:
- Electron-electron correlation ofSe1states of the helium atomPhysical Review A, 1988
- Classification and supermultiplet structure of doubly excited statesPhysical Review A, 1984
- Radial and angular correlations of two excited electrons. III. Comparison of configuration-interaction wave functions with adiabatic channel functions in hyperspherical coordinatesPhysical Review A, 1983
- Properties of high-lying doubly excited states ofPhysical Review A, 1982
- Radial and angular correlations of doubly excited electronsPhysical Review A, 1982
- Analytical channel functions for two-electron atoms in hyperspherical coordinatesPhysical Review A, 1981
- Energy levels and classifications of doubly-excited states in two-electron systems with nuclear charge, Z = 1, 2, 3, 4, 5, below the N = 2 and N = 3 thresholdsAtomic Data and Nuclear Data Tables, 1977
- Properties of resonance states inPhysical Review A, 1976
- Ground state and elastic phase shift of the electron-hydrogen system studied in hyperspherical coordinatesPhysical Review A, 1975
- Comparison of doubly-excited helium energy levels, isoelectronic series, autoionization lifetimes, and group-theoretical configuration-mixing predictions with large-configuration-interaction calculations and experimental spectraPhysical Review A, 1975