{
  "annotation_id": "1cfa7e12-108b-4bfe-8095-536df4b31195",
  "date_created": "2026-03-02T18:02:19.425000Z",
  "date_modified": "2026-03-02T18:02:19.425000Z",
  "file_hash": "4d0578ac7528a6aa76048449c82a168ecad05d968bd0fb0df27df6a29edeb28b",
  "private": false,
  "record": {
    "abstract": "We show how sub-Planck phase-space structures in the Wigner function can be\nused to achieve Heisenberg-limited sensitivity in weak force measurements.\nNonclassical states of harmonic oscillators, consisting of superpositions of\ncoherent states, are shown to be useful for the measurement of weak forces that\ncause translations or rotations in phase space, which is done by entangling the\nquantum oscillator with a two-level system. Implementations of this strategy in\ncavity QED and ion traps are described.",
    "arxiv_id": "quant-ph/0508093",
    "authors": [
      "F. Toscano",
      "D. A. R. Dalvit",
      "L. Davidovich",
      "W. H. Zurek"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.73.023803",
    "journal_ref": "Phys. Rev. A 73, 023803 (2006)",
    "title": "Sub-Planck phase-space structures and Heisenberg-limited measurements",
    "url": "https://arxiv.org/abs/quant-ph/0508093"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "60eb8285-3be1-459d-8f90-517a4f907f3f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}