{
  "annotation_id": "ea5162d3-d351-4f2f-9e10-9a124876ed41",
  "date_created": "2026-03-02T18:02:41.658000Z",
  "date_modified": "2026-03-02T18:02:41.658000Z",
  "file_hash": "4bdf75a1cea2aaf3b147ddc22620bae922fc4c5ccdb810a7552efd8788f1a9fd",
  "private": false,
  "record": {
    "abstract": "A Dirac particle is represented by a unitarily evolving state vector in a\nHilbert space which factors as $H_{spin} \\otimes H_{position}$. Motivated by\nthe similarity to simple models of decoherence consisting of a two state system\ncoupled to an environment, we investigate the occurence of decoherence in the\nDirac equation upon tracing over position. We conclude that the physics of this\nmathematically exact model for decoherence is closely related to\nZitterbewegung.",
    "arxiv_id": "quant-ph/9804023",
    "authors": [
      "David A. Meyer"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Decoherence in the Dirac equation",
    "url": "https://arxiv.org/abs/quant-ph/9804023"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d90e2f30-d269-44c9-92d3-cb663af2ec10",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}