{
  "annotation_id": "1cea3579-4f93-4cad-9eea-6ad12f39234a",
  "date_created": "2026-03-02T18:01:59.799000Z",
  "date_modified": "2026-03-02T18:01:59.799000Z",
  "file_hash": "477f23563b3eda0295da120e2e74aed4154fbbf4535c84157be7a667eec24b89",
  "private": false,
  "record": {
    "abstract": "We study the problem of measurement-induced decoherence using the phase-space\napproach employing the Gaussian-smoothed Wigner distribution function. Our\ninvestigation is based on the notion that measurement-induced decoherence is\nrepresented by the transition from the Wigner distribution to the\nGaussian-smoothed Wigner distribution with the widths of the smoothing function\nidentified as measurement errors. We also compare the smoothed Wigner\ndistribution with the corresponding distribution resulting from the classical\nanalysis. The distributions we computed are the phase-space distributions for\nsimple one-dimensional dynamical systems such as a particle in a square-well\npotential and a particle moving under the influence of a step potential, and\nthe time-frequency distributions for high-harmonic radiation emitted from an\natom irradiated by short, intense laser pulses.",
    "arxiv_id": "quant-ph/0305011",
    "authors": [
      "Yong-Jin Chun",
      "Hai-Woong Lee"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1016/S0003-4916(03)00116-7",
    "title": "Measurement-induced decoherence and Gaussian smoothing of the Wigner   distribution function",
    "url": "https://arxiv.org/abs/quant-ph/0305011"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c0a19fe7-684d-462c-812a-07a944d2424a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}