{
  "annotation_id": "f13bb35f-ab23-441c-863a-dcfa22f3125c",
  "date_created": "2026-03-02T18:01:45.196000Z",
  "date_modified": "2026-03-02T18:01:45.196000Z",
  "file_hash": "069e124dbee7cb451a1932190ff81c1b9131219d171e39bc6cadb467b37a6e1d",
  "private": false,
  "record": {
    "abstract": "Although universal continuous-variable quantum computation cannot be achieved\nvia linear optics (including squeezing), homodyne detection and feed-forward,\ninclusion of ideal photon counting measurements overcomes this obstacle. These\nmeasurements are sometimes described by arrays of beam splitters to distribute\nthe photons across several modes. We show that such a scheme cannot be used to\nimplement ideal photon counting and that such measurements necessarily involve\nnonlinear evolution. However, this requirement of nonlinearity can be moved\n\"off-line,\" thereby permitting universal continuous-variable quantum\ncomputation with linear optics.",
    "arxiv_id": "quant-ph/0110039",
    "authors": [
      "Stephen D. Bartlett",
      "Barry C. Sanders"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.65.042304",
    "journal_ref": "Phys. Rev. A 65, 042304 (2002)",
    "title": "Universal continuous-variable quantum computation: Requirement of   optical nonlinearity for photon counting",
    "url": "https://arxiv.org/abs/quant-ph/0110039"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "99de4eb9-f982-4563-bf00-9da5620e3aec",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}