{
  "annotation_id": "10fdd7ca-f4b2-475e-bc49-a8ad6a48a863",
  "date_created": "2026-03-02T18:02:00.146000Z",
  "date_modified": "2026-03-02T18:02:00.146000Z",
  "file_hash": "db72cf2112a31e616189f820ed2961574dc09ddb963e1daf3d72e33a9ea3abe8",
  "private": false,
  "record": {
    "abstract": "We investigate the decoherence of histories of local densities for linear\noscillators models. It is shown that histories of local number, momentum and\nenergy density are approximately decoherent, when coarse-grained over\nsufficiently large volumes. Decoherence arises directly from the proximity of\nthese variables to exactly conserved quantities (which are exactly decoherent),\nand not from environmentally-induced decoherence. We discuss the approach to\nlocal equilibrium and the subsequent emergence of hydrodynamic equations for\nthe local densities.",
    "arxiv_id": "quant-ph/0305084",
    "authors": [
      "J. J. Halliwell"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevD.68.025018",
    "journal_ref": "Phys Rev D 68, 025018 (2003)",
    "title": "Decoherence of Histories and Hydrodynamic Equations for a Linear   Oscillator Chain",
    "url": "https://arxiv.org/abs/quant-ph/0305084"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "122ff106-e33b-44f8-8363-265bc20bcb69",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}