{
  "annotation_id": "d17f674b-d3c0-4971-8be9-27bef28d7048",
  "date_created": "2026-03-02T18:02:00.198000Z",
  "date_modified": "2026-03-02T18:02:00.198000Z",
  "file_hash": "2b2b1f93d3e281dae04dfaa96e2c08817fab0d8f08eac5c956d96d53b700ba8a",
  "private": false,
  "record": {
    "abstract": "The production of conditional quantum states and quantum operations based on\nthe result of measurement is now seen as a key tool in quantum information and\nmetrology. We propose a new type of photon number detector. It functions\nnon-deterministically, but when successful, it has high fidelity. The detector,\nwhich makes use of an n-photon auxiliary Fock state and high efficiency\nHomodyne detection, allows a tunable tradeoff between fidelity and probability.\nBy sacrificing probability of operation, an excellent approximation to a photon\nnumber detector is achieved.",
    "arxiv_id": "quant-ph/0305185",
    "authors": [
      "A. M. Branczyk",
      "Tobias J. Osborne",
      "Alexei Gilchrist",
      "T. C. Ralph"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.68.043821",
    "journal_ref": "Phys. Rev. A 68, 043821 (2003)",
    "title": "Photon Added Detection",
    "url": "https://arxiv.org/abs/quant-ph/0305185"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "68ed1bcc-25bd-407d-9ab4-e2396172d65a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}