{
  "annotation_id": "e2051c8b-4d51-4319-9f1f-2916fc5ff07c",
  "date_created": "2026-03-02T18:02:20.221000Z",
  "date_modified": "2026-03-02T18:02:20.221000Z",
  "file_hash": "e9a29af50e8cfdea4731a17dc9303e8664a41ea93bbe5e9bebb59bffb6d5e640",
  "private": false,
  "record": {
    "abstract": "The best performance of a Mach-Zehnder interferometer is achieved with the\ninput state |N_T/2 + 1\u003e|N_T/2-1 \u003e + |N_T/2 - 1\u003e|N_T/2+1\u003e, being N_T the total\nnumber of atoms/photons. This gives: i) a phase-shift error confidence\nC_{68%}=2.67/N_T with ii) a single interferometric measurement. Different input\nquantum states can achieve the Heisenberg scaling ~ 1/N_T but with higher\nprefactors and at the price of a statistical analysis of two or more\nindependent measurements.",
    "arxiv_id": "quant-ph/0511059",
    "authors": [
      "Luca Pezze\u0027",
      "Augusto Smerzi"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.stat-mech"
    ],
    "doi": "10.1103/PhysRevA.73.011801",
    "title": "Phase Sensitivity of a Mach-Zehnder Interferometer",
    "url": "https://arxiv.org/abs/quant-ph/0511059"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "019e96b1-13e7-408e-9482-b2a9c3ef7bb5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}