{
  "annotation_id": "086c48cf-1ceb-4b4c-869f-0242b71a0567",
  "date_created": "2026-03-02T18:02:20.161000Z",
  "date_modified": "2026-03-02T18:02:20.161000Z",
  "file_hash": "0699e17d23fd87b3005b078f1bbf21cedfe1947683567266f7d5c0a207051c15",
  "private": false,
  "record": {
    "abstract": "Nonlinear optical quantum gates can be created probabilistically using only\nsingle photon sources, linear optical elements and photon-number resolving\ndetectors. These gates are heralded but operate with probabilities much less\nthan one. There is currently a large gap between the performance of the known\ncircuits and the established upper bounds on their success probabilities. One\npossibility for increasing the probability of success of such gates is\nfeed-forward, where one attempts to correct certain failure events that\noccurred in the gate\u0027s operation. In this brief report we examine the role of\nfeed-forward in improving the success probability. In particular, for the\nnon-linear sign shift gate, we find that in a three-mode implementation with a\nsingle round of feed-forward the optimal average probability of success is\napproximately given by p= 0.272. This value is only slightly larger than the\ngeneral optimal success probability without feed-forward, P= 0.25.",
    "arxiv_id": "quant-ph/0509075",
    "authors": [
      "S. Scheel",
      "W. J. Munro",
      "J. Eisert",
      "K. Nemoto",
      "P. Kok"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.73.034301",
    "journal_ref": "Phys. Rev. A 73, 034301 (2006)",
    "title": "Feed-forward and its role in conditional linear optical quantum dynamics",
    "url": "https://arxiv.org/abs/quant-ph/0509075"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f7d06f55-fc15-418b-81fe-ac438aa69fa6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}