{
  "annotation_id": "9b77101b-e707-4aed-8210-bb2d6d362215",
  "date_created": "2026-03-02T18:00:28.700000Z",
  "date_modified": "2026-03-02T18:00:28.700000Z",
  "file_hash": "782b8bd1a051e5b8dbeaf6c0f8bcc18ac8f0ff1b99b9fec02e277e056cbdeca1",
  "private": false,
  "record": {
    "abstract": "We analyze strong field atomic dynamics semiclassically, based on a full\ntime-dependent description with the Hermann-Kluk propagator. From the\nproperties of the exact classical trajectories, in particular the accumulation\nof action in time, the prominent features of above threshold ionization (ATI)\nand higher harmonic generation (HHG) are proven to be interference phenomena.\nThey are reproduced quantitatively in the semiclassical approximation.\nMoreover, the behavior of the action of the classical trajectories supports the\nso called strong field approximation which has been devised and postulated for\nstrong field dynamics.",
    "arxiv_id": "physics/0002038",
    "authors": [
      "Gerd van de Sand",
      "Jan M Rost"
    ],
    "categories": [
      "physics.atom-ph",
      "physics.optics"
    ],
    "doi": "10.1103/PhysRevA.62.053403",
    "journal_ref": "Phys Rev A 62, 053403 (2000)",
    "title": "Semiclassical description of multiphoton processes",
    "url": "https://arxiv.org/abs/physics/0002038"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "63dc624e-ee5e-45bd-bbd3-1a8b610be043",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}