{
  "annotation_id": "1fb65710-0a50-4c92-ac84-30a4e648d69c",
  "date_created": "2026-03-02T18:02:24.181000Z",
  "date_modified": "2026-03-02T18:02:24.181000Z",
  "file_hash": "3790d470c8db20a3e8be49c03e759799756de597310453151ff591b81911407b",
  "private": false,
  "record": {
    "abstract": "We prove that the classical theory with a discrete time (chronon) is a\nparticular case of a more general theory in which spinning particles are\nassociated with generalized Lagrangians containing time-derivatives of any\norder (a theory that has been called \"Non-Newtonian Mechanics\"). As a\nconsequence, we get, for instance, a classical kinematical derivation of\nHamiltonian and spin vector for the mentioned chronon theory (e.g., in\nCaldirola et al.\u0027s formulation).",
    "arxiv_id": "quant-ph/0512113",
    "authors": [
      "Erasmo Recami",
      "Giovanni Salesi"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1007/s10701-006-9101-9",
    "journal_ref": "Found. Phys. 37 (2007) 277-294",
    "title": "Deriving Spin within a discrete-time theory",
    "url": "https://arxiv.org/abs/quant-ph/0512113"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6b038a44-bb23-484a-bc76-3aa568683352",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}