{
  "annotation_id": "07978153-3593-4d12-ba19-a328e54e0a21",
  "date_created": "2026-03-02T18:01:52.031000Z",
  "date_modified": "2026-03-02T18:01:52.031000Z",
  "file_hash": "ae29bc8145aa83b242f6ab75d18c066690623e7d6378d768a34a0a2be147c8e2",
  "private": false,
  "record": {
    "abstract": "A novel method for the direct measurement of the degree of polarization is\ndescribed. It is one of the first practical implementations of a coherent\nquantum measurement, the projection on the singlet state. Our first results\ndemonstrate the successful operation of the method. However, due to the\nnonlinear crystals used presently, its application is limited to spectral\nwidths larger than ~8nm.",
    "arxiv_id": "quant-ph/0207055",
    "authors": [
      "Matthieu Legre",
      "Mark Wegmuller",
      "Nicolas Gisin"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1080/09500340308235513",
    "journal_ref": "J. Lightwave Tech., Vol. 21, No. 12, December 2003",
    "title": "Experimental investigation of a coherent quantum measurement of the   degree of polarization of a single mode light beam",
    "url": "https://arxiv.org/abs/quant-ph/0207055"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "177d1aef-965b-4fe2-97ef-cdebe29f0975",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}