{
  "annotation_id": "cbfd8cb2-1c04-462d-a7ec-0988b89008c0",
  "date_created": "2026-03-02T18:00:45.960000Z",
  "date_modified": "2026-03-02T18:00:45.960000Z",
  "file_hash": "cf58422b2f4ac2cb49f4129204187197aee0d85fa8872574967d5a688fe60c59",
  "private": false,
  "record": {
    "abstract": "We investigate ``shell structure\u0027\u0027 from Babylonian times: periodicities and\nbeats in computer-simulated lunar data corresponding to those observed by\nBabylonian scribes some 2500 years ago. We discuss the mathematical similarity\nbetween the Babylonians\u0027 recently reconstructed method of determining one of\nthe periods of the moon with modern Fourier analysis and the interpretation of\nshell structure in finite fermion systems (nuclei, metal clusters, quantum\ndots) in terms of classical closed or periodic orbits.",
    "arxiv_id": "physics/0310126",
    "authors": [
      "Lis Brack-Bernsen",
      "Matthias Brack"
    ],
    "categories": [
      "physics.hist-ph",
      "math.HO",
      "nlin.CD"
    ],
    "doi": "10.1142/S0218301304002028",
    "journal_ref": "Int. J. Mod. Phys. E 13, 247 - 260 (2004)",
    "title": "Analyzing shell structure from Babylonian and modern times",
    "url": "https://arxiv.org/abs/physics/0310126"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "66bf6d35-e9c4-4550-8085-99008218a474",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}