{
  "annotation_id": "dcb76eb0-382a-4f5d-b82b-eab065d31839",
  "date_created": "2026-03-02T18:01:56.563000Z",
  "date_modified": "2026-03-02T18:01:56.563000Z",
  "file_hash": "652d45fe32837f401e5f423c9719a3032d0a1c2f1a18e5391a2067a197b7e4c0",
  "private": false,
  "record": {
    "abstract": "We re-derive the quantum master equation for the decoherence of a massive\nBrownian particle due to collisions with the lighter particles from a thermal\nenvironment. Our careful treatment avoids the occurrence of squares of Dirac\ndelta functions. It leads to a decoherence rate which is smaller by a factor of\n2 pi compared to previous findings. This result, which is in agreement with\nrecent experiments, is confirmed by both a physical analysis of the problem and\nby a perturbative calculation in the weak coupling limit.",
    "arxiv_id": "quant-ph/0303094",
    "authors": [
      "Klaus Hornberger",
      "John E. Sipe"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.68.012105",
    "journal_ref": "Phys. Rev. A 68, 012105 (2003)",
    "title": "Collisional decoherence reexamined",
    "url": "https://arxiv.org/abs/quant-ph/0303094"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e345bf40-8ecf-49a7-8279-d317e364b988",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}