{
  "annotation_id": "77a98ee5-55ec-42c4-8148-e61525cd9619",
  "date_created": "2026-03-02T18:02:17.288000Z",
  "date_modified": "2026-03-02T18:02:17.288000Z",
  "file_hash": "1ccddd50516ccecbc1bd878ccedc64aa2165b812a31c92bb7ec165e4d982041b",
  "private": false,
  "record": {
    "abstract": "We demonstrate a new architecture for an optical entangling gate that is\nsignificantly simpler than previous realisations, using partially-polarising\nbeamsplitters so that only a single optical mode-matching condition is\nrequired. We demonstrate operation of a controlled-Z gate in both\ncontinuous-wave and pulsed regimes of operation, fully characterising it in\neach case using quantum process tomography. We also demonstrate a\nfully-resolving, nondeterministic optical Bell-state analyser based on this\ncontrolled-Z gate. This new architecture is ideally suited to guided optics\nimplementations of optical gates.",
    "arxiv_id": "quant-ph/0506262",
    "authors": [
      "N. K. Langford",
      "T. J. Weinhold",
      "R. Prevedel",
      "K. J. Resch",
      "A. Gilchrist",
      "J. L. O\u0027Brien",
      "G. J. Pryde",
      "A. G. White"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.95.210504",
    "journal_ref": "Phys.Rev.Lett.95:210504,2005",
    "title": "Demonstration of a simple entangling optical gate and its use in   Bell-state analysis",
    "url": "https://arxiv.org/abs/quant-ph/0506262"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "16e1afae-5fe9-4d7a-ae7a-8da98e974578",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}