Extracting amplitudes for single and double ionization from a time-dependent wave packet
Abstract
A method is described for extracting double ionization amplitudes from a quantum wave packet for an atom after a short radiation pulse, but while the electrons are still interacting. The procedure involves the use of exterior complex scaling to effectively propagate the field-free solution to infinite times, and allows the use of existing integral formulas for double ionization amplitudes for two electron atoms and molecules.
- Publication:
-
Physical Review A
- Pub Date:
- October 2007
- DOI:
- 10.1103/PhysRevA.76.043420
- Bibcode:
- 2007PhRvA..76d3420P
- Keywords:
-
- 32.80.Rm;
- 32.80.Fb;
- Multiphoton ionization and excitation to highly excited states;
- Photoionization of atoms and ions