{
  "annotation_id": "5949ceb4-5ac7-4fda-9d1f-99ad3a71d23f",
  "date_created": "2026-03-02T18:02:00.148000Z",
  "date_modified": "2026-03-02T18:02:00.148000Z",
  "file_hash": "b651bfc99d7ae4ca39c476fe395fd6bff36c5ab38d9b52aa214b59719628fd94",
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  "record": {
    "abstract": "A direct classical analog of the quantum dynamics of intrinsic decoherence in\nHamiltonian systems, characterized by the time dependence of the linear entropy\nof the reduced density operator, is introduced. The similarities and\ndifferences between the classical and quantum decoherence dynamics of an\ninitial quantum state are exposed using both analytical and computational\nresults. In particular, the classicality of early-time intrinsic decoherence\ndynamics is explored analytically using a second-order perturbative treatment,\nand an interesting connection between decoherence rates and the stability\nnature of classical trajectories is revealed in a simple approximate classical\ntheory of intrinsic decoherence dynamics. The results offer new insights into\ndecoherence, dynamics of quantum entanglement, and quantum chaos.",
    "arxiv_id": "quant-ph/0306002",
    "authors": [
      "Jiangbin Gong",
      "Paul Brumer"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.68.022101",
    "journal_ref": "Phys. Rev. A 68, 022101 (2003)",
    "title": "Intrinsic Decoherence Dynamics in Smooth Hamiltonian Systems:   Quantum-classical Correspondence",
    "url": "https://arxiv.org/abs/quant-ph/0306002"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3f883b11-8d3f-4708-b64c-e7908cb82d7c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}