{
  "annotation_id": "0c355e5e-d3e5-45bd-b3bc-ebc906030136",
  "date_created": "2026-03-02T18:01:37.944000Z",
  "date_modified": "2026-03-02T18:01:37.944000Z",
  "file_hash": "894829a472e8868d327df836637b2231ac5fac2f28207924a11181540d99ac67",
  "private": false,
  "record": {
    "abstract": "We propose a nonextensive generalization (q parametrized) of the von Neumann\nequation for the density operator. Our model naturally leads to the phenomenon\nof decoherence, and unitary evolution is recovered in the limit of q -\u003e 1. The\nresulting evolution yields a nonexponential decay for quantum coherences, fact\nthat might be attributed to nonextensivity. We discuss, as an example, the loss\nof coherence observed in trapped ions.",
    "arxiv_id": "quant-ph/0002071",
    "authors": [
      "A. Vidiella-Barranco",
      "H. Moya-Cessa"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1016/S0375-9601(00)00820-3",
    "journal_ref": "Phys. Lett. A 279, 56-60 (2001)",
    "title": "Nonextensive approach to decoherence in quantum mechanics",
    "url": "https://arxiv.org/abs/quant-ph/0002071"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "305bc36a-e061-4091-9555-bd60c321785d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}