{
  "annotation_id": "d30f2b40-78d0-41d2-9511-5a459d3dc7c9",
  "date_created": "2026-03-02T18:01:56.500000Z",
  "date_modified": "2026-03-02T18:01:56.500000Z",
  "file_hash": "8ae165fe8551bebc12e77c3e2cb63f9d756a5f096e6bd8801630204fa0cc69b7",
  "private": false,
  "record": {
    "abstract": "A neutron-spin experimental test of the quantum Zeno effect (QZE) is\ndiscussed from a practical point of view, when the nonideal efficiency of the\nmagnetic mirrors, used for filtering the spin state, is taken into account. In\nthe idealized case the number N of (ideal) mirrors can be indefinitely\nincreased, yielding an increasingly better QZE. By contrast, in a practical\nsituation with imperfect mirrors, there is an optimal number of mirrors, N_opt,\nat which the QZE becomes maximum: more frequent measurements would deteriorate\nthe performance. However, a quantitative analysis shows that a good\nexperimental test of the QZE is still feasible. These conclusions are of\ngeneral validity: in a realistic experiment, the presence of losses and\nimperfections leads to an optimal frequency N_opt, which is in general finite.\nOne should not increase N beyond N_opt. A convenient formula for N_opt, valid\nin a broad framework, is derived as a function of the parameters characterizing\nthe experimental setup.",
    "arxiv_id": "quant-ph/0301068",
    "authors": [
      "Paolo Facchi",
      "Yoichi Nakaguro",
      "Hiromichi Nakazato",
      "Saverio Pascazio",
      "Makoto Unoki",
      "Kazuya Yuasa"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.68.012107",
    "journal_ref": "Phys. Rev. A 68 (2003) 012107",
    "title": "Optimization of a Neutron-Spin Test of the Quantum Zeno Effect",
    "url": "https://arxiv.org/abs/quant-ph/0301068"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "dc804fa9-5f26-4912-8538-e000426328da",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}