{
  "annotation_id": "7b023844-9ee2-47a1-ba8f-a56c174798d6",
  "date_created": "2026-03-02T18:01:38.973000Z",
  "date_modified": "2026-03-02T18:01:38.973000Z",
  "file_hash": "6d2de3a858174d9ca1199509bb4c89b829b9db059dea8ebd0512f333b1a56c3e",
  "private": false,
  "record": {
    "abstract": "An analogous model system for quantum information processing is discussed,\nbased on classical wave optics. The model system is applied to three examples\nthat involve three qubits: ({\\em i}) three-particle Greenberger-Horne-Zeilinger\nentanglement, ({\\em ii}) quantum teleportation, and ({\\em iii}) a simple\nquantum error correction network. It is found that the model system can\nsuccessfully simulate most features of entanglement, but fails to simulate\nquantum nonlocality. Investigations of how far the classical simulation can be\npushed show that {\\em quantum nonlocality} is the essential ingredient of a\nquantum computer, even more so than entanglement. The well known problem of\nexponential resources required for a classical simulation of a quantum\ncomputer, is also linked to the nonlocal nature of entanglement, rather than to\nthe nonfactorizability of the state vector.",
    "arxiv_id": "quant-ph/0009066",
    "authors": [
      "Robert J. C. Spreeuw"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.63.062302",
    "journal_ref": "Phys. Rev. A 63, 062302 (2001)",
    "title": "Classical wave-optics analogy of quantum information processing",
    "url": "https://arxiv.org/abs/quant-ph/0009066"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d8407d6e-222e-43eb-93b3-8bc538803275",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}