{
  "annotation_id": "7bebbde6-fb08-4107-9822-eeb255c75664",
  "date_created": "2026-03-02T18:02:44.653000Z",
  "date_modified": "2026-03-02T18:02:44.653000Z",
  "file_hash": "b5f170211e6a4299e81cb1881c4dd212cd86df7df6cb864a40a4e2b5f75abc5e",
  "private": false,
  "record": {
    "abstract": "Superselection rules induced by the interaction with the environment are a\nbasis to understand the emergence of classical observables within quantum\ntheory. The aim of this article is to investigate the decoherence effects,\nwhich lead to superselection sectors, with the help of exactly soluble\nHamiltonian models. Starting from the examples of Araki and of Zurek more\ngeneral models with scattering are presented for which the projection operators\nonto the induced superselection sectors do no longer commute with the\nHamiltonian. The example of an environment given by a free quantum field\nindicates that infrared divergence plays an essential role for the emergence of\ninduced superselection sectors. For all models the induced superselection\nsectors are uniquely determined by the Hamiltonian, whereas the time scale of\nthe decoherence depends crucially on the initial state of the total system.",
    "arxiv_id": "quant-ph/9811010",
    "authors": [
      "Joachim Kupsch"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Exactly soluble models of decoherence",
    "url": "https://arxiv.org/abs/quant-ph/9811010"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a06626df-42cb-4d1f-95b1-60372a2e2607",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}