{
  "annotation_id": "4003c84f-4116-401a-b8ac-41c1dae69875",
  "date_created": "2026-03-02T18:02:41.490000Z",
  "date_modified": "2026-03-02T18:02:41.490000Z",
  "file_hash": "237528729dd485a27987125b54dcdab58b4dd8dfdafe9314c4dddad7a53a18c5",
  "private": false,
  "record": {
    "abstract": "The density matrix of a nonrelativistic wave-packet in an arbitrary,\none-dimensional and time-dependent potential can be reconstructed by measuring\nhydrodynamical moments of the Wigner distribution. An n-th order Taylor\npolynomial in the off-diagonal variable is obtained by measuring the\nprobability distribution at n+1 discrete time values.",
    "arxiv_id": "quant-ph/9805046",
    "authors": [
      "Lars M. Johansen"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.80.5461",
    "journal_ref": "Phys.Rev.Lett.80:5461-5464,1998",
    "title": "Hydrodynamical quantum state reconstruction",
    "url": "https://arxiv.org/abs/quant-ph/9805046"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3a53b848-44d4-49f0-bc42-5d17fcf07537",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}