{
  "annotation_id": "258e0174-7786-4cad-8337-96f180f541cc",
  "date_created": "2026-03-02T18:01:48.935000Z",
  "date_modified": "2026-03-02T18:01:48.935000Z",
  "file_hash": "1360b6a214a205f3821f296d7cf421afd7944177745114834e99a18b72706545",
  "private": false,
  "record": {
    "abstract": "Echo dynamics and fidelity are often used to discuss stability in quantum\ninformation processing and quantum chaos. Yet fidelity yields no information\nabout entanglement, the characteristic property of quantum mechanics. We study\nthe evolution of entanglement in echo dynamics. We find qualitatively different\nbehavior between integrable and chaotic systems on one hand and between random\nand coherent initial states for integrable systems on the other. For the latter\nthe evolution of entanglement is given by a classical time scale. Analytic\nresults are illustrated numerically in a Jaynes Cummings model.",
    "arxiv_id": "quant-ph/0204043",
    "authors": [
      "Tomaz Prosen",
      "Thomas H. Seligman",
      "Marko Znidaric"
    ],
    "categories": [
      "quant-ph",
      "nlin.CD"
    ],
    "doi": "10.1103/PhysRevA.67.042112",
    "journal_ref": "Phys.Rev.A 67, 042112 (2003)",
    "title": "Evolution of entanglement under echo dynamics",
    "url": "https://arxiv.org/abs/quant-ph/0204043"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "53bff1b6-d5c0-49a3-abe5-64e857ba6c39",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}