{
  "annotation_id": "bca49ca2-987a-4720-851b-466fd361f168",
  "date_created": "2026-03-02T18:01:52.029000Z",
  "date_modified": "2026-03-02T18:01:52.029000Z",
  "file_hash": "0e0c2e98b01592580ff6b33536ba7f1c3fdac0cc8bc887b9d11f592b64ef9f20",
  "private": false,
  "record": {
    "abstract": "We experimentally show that the response of a quantum-chaotic system can\ndisplay resonance lines sharper than the inverse of the excitation duration.\nThis allows us to discriminate two neighboring frequencies with a resolution\nnearly 40 times better than the limit set by the Fourier inequality.\nFurthermore, numerical studies indicate that there is no limit, but the loss of\nsignal, to this resolution, opening ways for the development of sub-Fourier\nquantum-chaotic signal processing.",
    "arxiv_id": "quant-ph/0207097",
    "authors": [
      "Pascal Szriftgiser",
      "Jean Ringot",
      "Dominique Delande",
      "Jean Claude Garreau"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.89.224101",
    "journal_ref": "Physical Review Letters 89, 224101 (2002)",
    "title": "Observation of sub-Fourier resonances in a quantum-chaotic system",
    "url": "https://arxiv.org/abs/quant-ph/0207097"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "90f0d820-b2d2-4c1c-bb58-31c7561b9cf6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}