{
  "annotation_id": "abfbe490-75c1-4fb9-86d7-532e1811df14",
  "date_created": "2026-03-02T18:00:01.090000Z",
  "date_modified": "2026-03-02T18:00:01.090000Z",
  "file_hash": "ef701fa3386fc961f519d56d0bcc77c5d9e0073a902ec8520adf548d2a70abc8",
  "private": false,
  "record": {
    "abstract": "Within a quantum molecular dynamics model we calculate the largest Lyapunov\nexponent (LLE), density fluctuation and mass distribution of fragments for a\nseries of nuclear systems at different initial temperatures. It is found that\nthe $LLE$ peaks at the temperature (\"critical temperature\") where the density\nfluctuation reaches a maximal value and the mass distribution of fragments is\nbest fitted by the Fisher\u0027s power law from which the critical exponents for\nmass and charge distribution are obtained. The time-dependent behavior of the\nLLE and density fluctuation is studied. We find that the time scale of the\ndensity fluctuation is much longer than the inverse LLE, which indicates that\nthe chaotic motion can be well developed during the process of fragment\nformation. The finite-size effect on \"critical temperature\" for nuclear systems\nranging from Calcium to superheavy nuclei is also studied.",
    "arxiv_id": "nucl-th/0403014",
    "authors": [
      "Yingxun Zhang",
      "Xizhen Wu",
      "Zhuxia Li"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.69.044609",
    "journal_ref": "Phys.Rev. C69 (2004) 044609",
    "title": "Connection between the Largest Lyapunov Exponent, Density Fluctuation   and Multifragmentation in Excited Nuclear Systems",
    "url": "https://arxiv.org/abs/nucl-th/0403014"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e2801db8-9f41-4fb1-a88a-63c8c161f882",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}