{
  "annotation_id": "e391874d-0bb5-4dda-af52-1cbbcbdd23df",
  "date_created": "2026-03-02T18:02:44.485000Z",
  "date_modified": "2026-03-02T18:02:44.485000Z",
  "file_hash": "9ad0cbed6965adadc65c025c55014c618bdbdb9492b3b2eac116e7bcde411005",
  "private": false,
  "record": {
    "abstract": "The Lamb Shift (LS) of Hydrogenlike atom is evaluated by a simple method of\nquantum electrodynamics in noncovariant form, based on the relativistic\nstationary Schr\\\"odinger equation. An induced term proportional to\n$\\overrightarrow{p}^4$ in the effective Hamiltonian is emphasized. Perturbative\ncalculation of second order leads to the LS of $ 1S_{1/2}$ state and that of\n$2S_{1/2}-2P_{1/2}$ states in H atom with the high accuracy within 0.1%",
    "arxiv_id": "quant-ph/9901016",
    "authors": [
      "Guang-jiong Ni",
      "Jun Yan"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Lamb shift calculated by simple noncovariant method",
    "url": "https://arxiv.org/abs/quant-ph/9901016"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5284dd73-d6f0-4427-99b6-2055c7a535f6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}