{
  "annotation_id": "e8c287b6-dce5-4546-81ea-431d0e364053",
  "date_created": "2026-03-02T18:02:06.647000Z",
  "date_modified": "2026-03-02T18:02:06.647000Z",
  "file_hash": "202008de8118d169d7dd8fa415733be27af715ea200ecec35fc8fe90cd1f67c7",
  "private": false,
  "record": {
    "abstract": "We propose a scheme for implementing a multipartite quantum filter that uses\nentangled photons as a resource. It is shown that the success probability for\nthe 2-photon parity filter can be as high as 1/2, which is the highest that has\nso far been predicted without the help of universal two-qubit quantum gates.\nFurthermore, the required number of ancilla photons is the least of all current\nparity filter proposals. Remarkably, the quantum filter operates with\nprobability 1/2 even in the N-photon case, irregardless of the number of\nphotons in the input state.",
    "arxiv_id": "quant-ph/0406008",
    "authors": [
      "Yuan Liang Lim",
      "Almut Beige"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1080/09500340512331323493",
    "journal_ref": "J. Mod. Opt. 52, 1073 (2005).",
    "title": "An efficient quantum filter for multiphoton states",
    "url": "https://arxiv.org/abs/quant-ph/0406008"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "dd1acbd3-ba9b-45a4-a6dd-04919bb776b4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}