{
  "annotation_id": "0105e092-7db8-45f5-b5a1-5bb4b13617f2",
  "date_created": "2026-03-02T18:01:52.496000Z",
  "date_modified": "2026-03-02T18:01:52.496000Z",
  "file_hash": "3d7d6dfa7f265ef2ddf170f71022cfea3da4572e08a95e14e15abfec2cb63444",
  "private": false,
  "record": {
    "abstract": "It is shown how the Canonical Function approach can be used to obtain\naccurate solutions for the distorted wave problem taking account of direct\nstatic and polarisation potentials and exact non-local exchange. Calculations\nare made for electrons in the field of atomic hydrogen and the phaseshifts are\ncompared with those obtained using a modified form of the DWPO code of McDowell\nand collaborators: for small wavenumbers our approach avoids numerical\ninstabilities otherwise present. Comparison is also made with phaseshifts\ncalculated using local equivalent-exchange potentials and it is found that\nthese are inaccurate at small wavenumbers. Extension of our method to the case\nof atoms having other than s-type outer shells is dicussed.",
    "arxiv_id": "quant-ph/0206107",
    "authors": [
      "K. Fakhreddine",
      "R. J. Tweed",
      "G. Nguyen Vien",
      "C. Tannous",
      "J. Langlois",
      "O. Robaux"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Distorted Waves with Exact Non-Local Exchange: a Canonical Function   Approach",
    "url": "https://arxiv.org/abs/quant-ph/0206107"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "58adeb19-a7f1-451b-8f30-2b0a51bc0857",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}