{
  "annotation_id": "d6063eb3-c99b-412b-ba9c-6878cb9d93dc",
  "date_created": "2026-03-02T18:00:53.369000Z",
  "date_modified": "2026-03-02T18:00:53.369000Z",
  "file_hash": "56b29145b1dba39e8898f31d915a8af6e0fb7089b3818c8db29ee6ca9b49fefe",
  "private": false,
  "record": {
    "abstract": "A procedure to calculate the radiation spectrum emitted by an arbitrarily\nprepared Dirac wave packet is developed. It is based on the Dirac charge\ncurrent and classical electrodynamic theory. Apart from giving absolute\nintensity values, it is exact in terms of relativistic retardation effects and\nangular dependence. We employ a laser driven free electron to demonstrate the\nadvantages of our method as compared to traditional ones that merely rely on\nthe Fourier transform of the dipole operator\u0027s expectation value. Classical\nreference calculations confirm the results obtained for the low-frequency part\nof the spectrum, especially in terms of the observed red-shifts, which clearly\ndeviate from non-relativistic calculations. In the high-frequency part of the\nspectrum, we note appreciable deviations to the purely classical calculations\nwhich may be linked to quantum averaging effects.",
    "arxiv_id": "physics/0408110",
    "authors": [
      "Guido R. Mocken",
      "Christoph H. Keitel"
    ],
    "categories": [
      "physics.atom-ph",
      "physics.comp-ph"
    ],
    "doi": "10.1016/j.cpc.2004.12.002",
    "title": "Radiation spectra of laser-driven quantum relativistic electrons",
    "url": "https://arxiv.org/abs/physics/0408110"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "38eef843-31c8-49c3-9cd0-13025ffd3b01",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}