{
  "annotation_id": "73e2dbdd-1176-45af-b6f2-0511952641dc",
  "date_created": "2026-03-02T18:02:24.010000Z",
  "date_modified": "2026-03-02T18:02:24.010000Z",
  "file_hash": "ce2bda820b85c89f54e1df24c0f47843e57cc23b1e38d111461b7f455623bb05",
  "private": false,
  "record": {
    "abstract": "In this paper, we report an experiment, which demonstrates computation of\ntopological charges of two optical vortices via non-degenerate four-wave-mixing\nprocess. We show that the output signal beam carries orbital angular momentum\nwhich equals to the subtraction of the orbital angular momenta of the probe\nlight and the backward pump light. The \u0026#8312;\u0026#8309;Rb atoms are used as the\nnonlinear medium, which transfer the orbital angular momenta of lights.",
    "arxiv_id": "quant-ph/0603086",
    "authors": [
      "Wei Jiang",
      "Qun-feng Chen",
      "Yong-sheng Zhang",
      "G. -C. Guo"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.74.043811",
    "journal_ref": "Phys. Rev. A 74, 043811 (2006)",
    "title": "Computation of topological charges of optical vortices via   non-degenerate four-wave-mixing",
    "url": "https://arxiv.org/abs/quant-ph/0603086"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "68f61a8d-08ca-4082-b8f5-117ef095cd70",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}