Numerical study of autoionizing states in completely correlated two-electron systems
- 1 July 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 50 (1) , 378-391
- https://doi.org/10.1103/physreva.50.378
Abstract
The structure of a one-dimensional two-electron model atom analogous to helium is examined. Predictions of Hartree-Fock and basis-state diagonalization methods are compared with results of exact numerical techniques. Particular attention is given to the lowest-energy autoionizing resonance and to how the autoionizing state can be defined. The dynamics of the autoionizing decay are examined with regard to the time development of the spatial wave function and various population amplitudes. The photoabsorption line shape of the lowest-lying autoionizing state for dipole excitation from the first excited state is also presented.Keywords
This publication has 10 references indexed in Scilit:
- One-dimensional model of a negative ion and its interaction with laser fieldsPhysical Review A, 1993
- Double ionization in the perturbative and tunneling regimesPhysical Review A, 1993
- Observation of coherence transfer by electron-electron correlationPhysical Review A, 1993
- Single and double ionization and strong-field stabilization of a two-electron systemPhysical Review A, 1993
- Photoelectron spectra for a two-electron system in a strong laser fieldPhysical Review Letters, 1992
- Validity of time-dependent Hartree-Fock theory for the multiphoton ionization of atomsPhysical Review Letters, 1991
- Tunneling ionization of noble gases in a high-intensity laser fieldPhysical Review Letters, 1989
- Creation of multiple charges (up to Xe^6+) from Xe atoms by an intense CO_2 laserJournal of the Optical Society of America B, 1987
- Integrity of dressed states in multiphoton ionisationJournal of Physics B: Atomic and Molecular Physics, 1981
- Effects of Configuration Interaction on Intensities and Phase ShiftsPhysical Review B, 1961