{
  "annotation_id": "e104bfd7-1eb6-4232-bd4e-5eb0cb580118",
  "date_created": "2026-03-02T18:02:06.281000Z",
  "date_modified": "2026-03-02T18:02:06.281000Z",
  "file_hash": "34e76c3bf5d4cc333b70582f9f8166d0ad2ec7c8d1433d6f9b33513e820255fa",
  "private": false,
  "record": {
    "abstract": "We report the experimental realization of the purification protocol for\nsingle qubits sent through a depolarization channel. The qubits are associated\nwith polarization encoded photon particles and the protocol is achieved by\nmeans of passive linear optical elements. The present approach may represent a\nconvenient alternative to the distillation and error correction protocols of\nquantum information.",
    "arxiv_id": "quant-ph/0403118",
    "authors": [
      "M. Ricci",
      "F. De Martini",
      "N. J. Cerf",
      "R. Filip",
      "J. Fiurasek",
      "C. Macchiavello"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.93.170501",
    "journal_ref": "Phys. Rev. Lett. 93, 170501 (2004)",
    "title": "Experimental Purification of Single Qubits",
    "url": "https://arxiv.org/abs/quant-ph/0403118"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a71e0446-3f84-48f6-b3c5-3ec13b4cd315",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}