{
  "annotation_id": "5922b058-7257-454f-8b53-ff9a944a3386",
  "date_created": "2026-03-02T18:01:56.671000Z",
  "date_modified": "2026-03-02T18:01:56.671000Z",
  "file_hash": "4ca14ed1296a43bb7a2d2addaf03127e0009f725f94012b39f47dc63ca112910",
  "private": false,
  "record": {
    "abstract": "Single-photon resolution (SPR) detectors can tell the difference between\nincoming wave packets of n and n+1 photons. Such devices are especially\nimportant for linear optical quantum computing with projective measurements.\nHowever, in this paper I show that it is impossible to construct a\nphotodetector with single-photon resolution when we are restricted to\nsingle-photon sources, linear optical elements and projective measurements with\nstandard (non-photon-number discriminating) photodetectors. These devices\ninclude SPR detectors that sometimes fail to distinguish one- and two-photon\ninputs, but at the same time indicate this failure.",
    "arxiv_id": "quant-ph/0303102",
    "authors": [
      "Pieter Kok"
    ],
    "categories": [
      "quant-ph"
    ],
    "journal_ref": "IEEE: Sel. Top. Quantum Electronics 9, 1498 (2003).",
    "title": "Limitations on building single-photon-resolution detection devices",
    "url": "https://arxiv.org/abs/quant-ph/0303102"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "af7cdfe2-29c6-4375-a78d-696493adb500",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}