Abstract
Ensembles of 400 000 two-electron trajectories in three space dimensions are used with Newtonian equations of motion to track atomic double ionization under very strong laser fields. We report a variable time lag between collision and double ionization, and find that the time lag plays a key role in the emergence directions of the electrons. These are precursors to production of electron momentum distributions showing substantial new agreement with experimental data.
- Received 6 April 2006
DOI:https://doi.org/10.1103/PhysRevLett.97.103008
©2006 American Physical Society