Phys. Rev. Lett. 97, 103008 (2006) [4 pages]Variable Time Lag and Backward Ejection in Full-Dimensional Analysis of Strong-Field Double IonizationReceived 6 April 2006; published 8 September 2006 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 e-e 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. © 2006 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.97.103008
DOI:
10.1103/PhysRevLett.97.103008
PACS:
32.80.Rm, 32.60.+i
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