{
  "annotation_id": "7c9d8830-5873-4f06-90f7-eaced76e9ed3",
  "date_created": "2026-03-02T18:02:23.669000Z",
  "date_modified": "2026-03-02T18:02:23.669000Z",
  "file_hash": "5f699920f25fde6458288dc4084dda891b88de278efc18e76bb2781354785a1a",
  "private": false,
  "record": {
    "abstract": "We design linear optics multiqubit quantum logic gates. We assume the\ntraditional encoding of a qubit onto state of a single photon in two modes\n(e.g. spatial or polarization). We suggest schemes allowing direct\nprobabilistic realization of the fundamental Toffoli and Fredkin gates without\nresorting to a sequence of single- and two-qubit gates. This yields more\ncompact schemes and potentially reduces the number of ancilla photons. The\nproposed setups involve passive linear optics, sources of auxiliary single\nphotons or maximally entangled pairs of photons, and single-photon detectors.\nIn particular, we propose an interferometric implementation of the Toffoli gate\nin the coincidence basis, which does not require any ancilla photons and is\nexperimentally feasible with current technology.",
    "arxiv_id": "quant-ph/0602220",
    "authors": [
      "Jaromir Fiurasek"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.73.062313",
    "journal_ref": "Phys. Rev. A 73, 062313 (2006).",
    "title": "Linear optics quantum Toffoli and Fredkin gates",
    "url": "https://arxiv.org/abs/quant-ph/0602220"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "87230a3a-4cbb-4669-bf54-3d66a368183d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}