{
  "annotation_id": "ace6fb93-3f90-48a3-b238-72c698fd47ca",
  "date_created": "2026-03-02T18:01:38.726000Z",
  "date_modified": "2026-03-02T18:01:38.726000Z",
  "file_hash": "7ecffd1c6ca0b6144565445158376365da9ae4113e5c3bfc2e328f7602227087",
  "private": false,
  "record": {
    "abstract": "Brownian motion is modelled by a harmonic oscillator (Brownian particle)\ninteracting with a continuous set of uncoupled harmonic oscillators. The\ninteraction is linear in the coordinates and the momenta. The model has an\nanalytical solution that is used to study the time evolution of the reduced\ndensity operator. It is derived in a closed form, in the one-particle sector of\nthe model. The irreversible behavior of the Brownian particle is described by a\nreduced density matrix.",
    "arxiv_id": "quant-ph/0005041",
    "authors": [
      "Diego G. Arbo",
      "Mario A. Castagnino",
      "Fabian H. Gaioli",
      "Sergio Iguri"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1016/S0378-4371(99)00480-X",
    "journal_ref": "Physica A, 277, (2000), 469-495",
    "title": "Minimal irreversible quantum mechanics. The decay of unstable states",
    "url": "https://arxiv.org/abs/quant-ph/0005041"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "47f1a0a3-b8ef-4d8d-8b53-edbef8f32df4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}