{
  "annotation_id": "5b9b0bc6-dd9d-4236-a6a6-be2d959d0957",
  "date_created": "2026-03-02T18:01:45.569000Z",
  "date_modified": "2026-03-02T18:01:45.569000Z",
  "file_hash": "c032faa3b5f71197c9090477a274351b1191aebd27024d7c17980ea4fabba6ee",
  "private": false,
  "record": {
    "abstract": "From a development of an original idea due to Schwinger, it is shown that it\nis possible to recover, from the quantum description of a degree of freedom\ncharacterized by a finite number of states (\\QTR{it}{i.e}., without classical\ncounterpart) the usual canonical variables of position/momentum \\QTR{it}{and}\nangle/angular momentum, relating, maybe surprisingly, the first as a limit of\nthe later.",
    "arxiv_id": "quant-ph/0108031",
    "authors": [
      "M. Ruzzi"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/0305-4470/35/7/320",
    "title": "Schwinger, Pegg and Barnett and a relationship between angular and   Cartesian quantum descriptions",
    "url": "https://arxiv.org/abs/quant-ph/0108031"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0304d6fd-b161-4288-9894-14972c7f1595",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}