2000/02/20 by Gerd van de Sand, Jan M. Rost, Jan M Rost · 1 citation
Physics and Astronomy · #Advanced Fiber Laser Technologies #Laser-Matter Interactions and Applications #Spectroscopy and Quantum Chemical Studies #physics.atom-ph #physics.optics
paper · pdf · doi:10.1103/physreva.62.053403
published as Phys Rev A 62, 053403 (2000) · 10 pages, 11 figures
arxiv created 2000/02/20 · openalex publication_date 2000/10/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We analyze strong field atomic dynamics semiclassically, based on a full time-dependent description with the Hermann-Kluk propagator. From the properties of the exact classical trajectories, in particular the accumulation of action in time, the prominent features of above-threshold ionization and higher-harmonic generation are proven to be interference phenomena. They are reproduced quantitatively in the semiclassical approximation. Moreover, the behavior of the action of the classical trajectories supports the so called strong field approximation which has been devised and postulated for strong field dynamics.