{
  "annotation_id": "43ea079b-5405-4582-821a-96b88356f515",
  "date_created": "2026-03-02T18:00:50.154000Z",
  "date_modified": "2026-03-02T18:00:50.154000Z",
  "file_hash": "b557b7f690fc8ec93df741c4591c47943b886b1a979e90b7feb91663e7f3f4c5",
  "private": false,
  "record": {
    "abstract": "The full-dimensional time-dependent Schrodinger equation for the electronic\ndynamics of single-electron systems in intense external fields is solved\ndirectly using a discrete method.\n  Our approach combines the finite-difference and Lagrange mesh methods. The\nmethod is applied to calculate the quasienergies and ionization probabilities\nof atomic and molecular systems in intense static and dynamic electric fields.\nThe gauge invariance and accuracy of the method is established. Applications to\nmultiphoton ionization of positronium and hydrogen atoms and molecules are\npresented. At very high intensity above saturation threshold, we extend the\nmethod using a scaling technique to estimate the quasienergies of metastable\nstates of the hydrogen molecular ion. The results are in good agreement with\nrecent experiments.",
    "arxiv_id": "physics/0402108",
    "authors": [
      "Liang-You Peng",
      "J F McCann",
      "Daniel Dundas",
      "K T Taylor",
      "I D Williams"
    ],
    "categories": [
      "physics.atom-ph",
      "math-ph",
      "math.MP",
      "physics.chem-ph",
      "physics.comp-ph"
    ],
    "doi": "10.1063/1.1735662",
    "journal_ref": "J. Chem. Phys 120 (2004) 10046",
    "title": "A discrete time-dependent method for metastable atoms in intense fields",
    "url": "https://arxiv.org/abs/physics/0402108"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2bb43ff4-5ef3-4711-9182-bb72c3b69d9f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}