{
  "annotation_id": "64e3d081-3522-4ab0-9b7e-5f6ca226f008",
  "date_created": "2026-03-02T18:01:52.288000Z",
  "date_modified": "2026-03-02T18:01:52.288000Z",
  "file_hash": "95fe584f2f519cd253a14dd572ed897fdf81ec9d9a25dc6c7d0168e98dafeb4a",
  "private": false,
  "record": {
    "abstract": "The Loschmidt Echo M(t) (defined as the squared overlap of wave packets\nevolving with two slightly different Hamiltonians) is a measure of quantum\nreversibility. We investigate its behavior for classically quasi-integrable\nsystems. A dominant regime emerges where M(t) ~ t^{-alpha} with alpha=3d/2\ndepending solely on the dimension d of the system. This power law decay is\nfaster than the result ~ t^{-d} for the decay of classical phase space\ndensities.",
    "arxiv_id": "quant-ph/0206160",
    "authors": [
      "Ph. Jacquod",
      "I. Adagideli",
      "C. W. J. Beenakker"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.mes-hall",
      "nlin.CD"
    ],
    "doi": "10.1209/epl/i2003-00289-y",
    "journal_ref": "Europhys. Lett. 61, 729-735 (2003)",
    "title": "Anomalous power law of quantum reversibility for classically regular   dynamics",
    "url": "https://arxiv.org/abs/quant-ph/0206160"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7485bb46-90fe-448d-861f-7d0f810ad05a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}