{
  "annotation_id": "39c7ebbb-53a6-4348-bb49-d044dffcf3b5",
  "date_created": "2026-03-02T18:01:24.526000Z",
  "date_modified": "2026-03-02T18:01:24.526000Z",
  "file_hash": "abbf89993f3bc4a2d194bab8b00d673cb5ecdc55ed003253ff5c18c28f4bba17",
  "private": false,
  "record": {
    "abstract": "Rohrlich\u0027s recent claim that the equation of motion for a point charge be\nsymmetric under time reversal is shown to be the result of an unusual\ndefinition. The equation of motion for a charged sphere of finite size, which\nin contrast is claimed to be asymmetric because of the finite propagation time\nof its (retarded) self-forces, is shown to possess the same asymmetry (or the\nsame symmetry, depending on the definition) as that for a point charge. Similar\narguments apply to other effective equations of motion (such as those\ndescribing friction or decoherence).",
    "arxiv_id": "physics/9903046",
    "authors": [
      "H. D. Zeh"
    ],
    "categories": [
      "physics.class-ph",
      "gr-qc",
      "hep-th"
    ],
    "journal_ref": "Found.Phys.Lett. 12 (1999) 193-196",
    "title": "Note on the Time Reversal Asymmetry of Equations of Motion",
    "url": "https://arxiv.org/abs/physics/9903046"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ed02e87b-8977-4830-8961-909ac1e16673",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}