{
  "annotation_id": "756d68bc-702d-4fb1-9738-8a6e59842994",
  "date_created": "2026-03-02T18:02:26.742000Z",
  "date_modified": "2026-03-02T18:02:26.742000Z",
  "file_hash": "c19d9294d5d1d8d8ee41a168f3c4b0f2ba522cd8ed07b46e98cce0c4b591b00a",
  "private": false,
  "record": {
    "abstract": "We report experimental results on mixed-state generation by multiple\nscattering of polarization-entangled photon pairs created from parametric\ndown-conversion. By using a large variety of scattering optical systems we have\nexperimentally obtained entangled mixed states that lie upon and below the\nWerner curve in the linear entropy-tangle plane. We have also introduced a\nsimple phenomenological model built on the analogy between classical\npolarization optics and quantum maps. Theoretical predictions from such model\nare in full agreement with our experimental findings.",
    "arxiv_id": "quant-ph/0607014",
    "authors": [
      "G. Puentes",
      "D. Voigt",
      "A. Aiello",
      "J. P. Woerdman"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.75.032319",
    "title": "Entangled mixed-state generation by twin-photon scattering",
    "url": "https://arxiv.org/abs/quant-ph/0607014"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8c363ce2-c9fc-424e-bcc0-b66bbe3f3140",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}