{
  "annotation_id": "3d427ef7-31e4-40bd-b6d7-43dd0466993b",
  "date_created": "2026-03-02T18:00:39.553000Z",
  "date_modified": "2026-03-02T18:00:39.553000Z",
  "file_hash": "f8cccb4dd5309c48384db4a124772487f2f2ff8e919effea515e013d560117bd",
  "private": false,
  "record": {
    "abstract": "In this paper, a quasistatic model is extended to describe the double\nionization of Helium in intense linearly polarized field, yielding achieve an\ninsight to the two-electron correlation effect in the ionization dynamics. Our\nnumerical calculations reproduce the excessive double ionization and the\nphotoelectron spectra observed experimentally both quantitatively and\nqualitatively. Moreover, it is shown that the classical collisional\ntrajectories are the main source of the double ionization in the knee regime\nand responsible for the unusual angular distribution of the photoelectrons.",
    "arxiv_id": "physics/0112010",
    "authors": [
      "Li-Bin Fu",
      "Jie Liu",
      "Jing Chen",
      "Shi-Gang Chen"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevA.63.043416",
    "journal_ref": "Phys. Rev. A 63, 043416 (2001)",
    "title": "Classical collisional trajectories as the source of strong-field double   ionization of helium in the knee regime",
    "url": "https://arxiv.org/abs/physics/0112010"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "372c4a8e-ee37-4ef5-8060-68fc04a5f3c3",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}