{
  "annotation_id": "20db57ee-6706-433a-ad37-f62f2e130375",
  "date_created": "2026-03-02T18:02:22.886000Z",
  "date_modified": "2026-03-02T18:02:22.886000Z",
  "file_hash": "4c7bb57ffe63385626fded17dbe6d1a9e83fa1893a5386a2d3b05edfa7e93581",
  "private": false,
  "record": {
    "abstract": "A simple approach for understanding the quantum nature of angular momentum\nand its reduction to the classical limit is presented based on Schwinger\u0027s\ncoupled-boson representation. This approach leads to a straightforward\nexplanation of why the square of the angular momentum in quantum mechanics is\ngiven by j(j+1) instead of just j^2, where j is the angular momentum quantum\nnumber.",
    "arxiv_id": "quant-ph/0511259",
    "authors": [
      "ILki Kim",
      "Gerald J. Iafrate"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Comment on the quantum nature of angular momentum using a coupled-boson   representation",
    "url": "https://arxiv.org/abs/quant-ph/0511259"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "802b6591-3f6a-462c-bc24-2ebb80ca224b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}