{
  "annotation_id": "f3140a14-7c8f-45d3-b860-aba6760d11ac",
  "date_created": "2026-03-02T18:01:49.213000Z",
  "date_modified": "2026-03-02T18:01:49.213000Z",
  "file_hash": "96eb32ff3a93d6b16223bf7204d487164242b5d2163d0f0f929c85138f074733",
  "private": false,
  "record": {
    "abstract": "Using linear invariant operators in a constructive way we find the most\ngeneral thermal density operator and Wigner function for time-dependent\ngeneralized oscillators. The general Wigner function has five free parameters\nand describes the thermal Wigner function about a classical trajectory in phase\nspace. The contour of the Wigner function depicts an elliptical orbit with a\nconstant area moving about the classical trajectory, whose eccentricity\ndetermines the squeezing of the initial vacuum.",
    "arxiv_id": "quant-ph/0205006",
    "authors": [
      "Sang Pyo Kim",
      "Don N. Page"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Exact Quantum-Statistical Dynamics of Time-Dependent Generalized   Oscillators",
    "url": "https://arxiv.org/abs/quant-ph/0205006"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0c7a6f33-ec7a-4a41-80bb-9cfff984d755",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}