Complex-scaling calculations for resonance states of he with screened coulomb potentials
Article first published online: 1 JUL 2013
Copyright © 2013 Wiley Periodicals, Inc.
International Journal of Quantum Chemistry
Volume 113, Issue 24, pages 2569–2579, 15 December 2013
How to Cite
How to cite this article: Int. J. Quantum Chem. 2013, 113, 2569–2579. DOI: 10.1002/qua.24504, .
- Issue published online: 9 NOV 2013
- Article first published online: 1 JUL 2013
- Manuscript Accepted: 13 JUN 2013
- Manuscript Revised: 6 JUN 2013
- Manuscript Received: 15 MAY 2013
- The National Science Council of Taiwan (R.O.C.)
- complex scaling method;
- screened Coulomb potential
The doubly excited 1Se, 1Po, and 1De resonance states of helium atom with screened Coulomb potentials are investigated. The complex scaling method with configuration interaction type basis functions are employed to extract the resonances associated with the He+(N = 2, 3, and 4) thresholds. 18 resonances (six below each of the He+ threshold) for each angular-momentum state are calculated. The results lying below the He+(N = 2) threshold are in good agreement with previous calculations by the stabilization method with correlated basis wave functions. The 1Po and 1De resonance states lying below the He+(N = 3 and 4) thresholds in the screening environment are reported for the first time. © 2013 Wiley Periodicals, Inc.