{
  "annotation_id": "ce258760-b4fe-4354-bfc0-3913cc597961",
  "date_created": "2026-03-02T18:02:19.486000Z",
  "date_modified": "2026-03-02T18:02:19.486000Z",
  "file_hash": "945dd9d5fe7252f41c104359e7d16776ecde1ed061720c17394fa0cdccc27511",
  "private": false,
  "record": {
    "abstract": "A quantum field theory approach is put forward to generalize the concept of\nclassical spatial light beams carrying orbital angular momentum to the\nsingle-photon level. This quantization framework is carried out both in the\nparaxial and nonparaxial regimes. Upon extension to the optical phase space,\nclosed-form expressions are found for a photon Wigner representation describing\ntransformations on the orbital Poincare sphere of unitarily related families of\nparaxial spatial modes.",
    "arxiv_id": "quant-ph/0509040",
    "authors": [
      "G. F. Calvo",
      "A. Picon",
      "E. Bagan"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "A Quantum Field Theory Twist to Photon Angular Momentum",
    "url": "https://arxiv.org/abs/quant-ph/0509040"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "95ae61b4-f0ba-4b3a-8a69-b33bd90afebc",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}