{
  "annotation_id": "9fb1c50a-99b5-4b94-beb6-2de51cf5e20a",
  "date_created": "2026-03-02T18:01:04.114000Z",
  "date_modified": "2026-03-02T18:01:04.114000Z",
  "file_hash": "4502891c6715e6c7f470c44f1c779f7c0c29cf77185b77052b523d901352bb79",
  "private": false,
  "record": {
    "abstract": "This article proves that elementary particles can violate the second\npostulate of the Special Theory of Relativity. According to Heisenberg\u0027s\nprinciple, superluminal particles are allowed in the theoretical framework of\nQuantum Mechanics. In this paper the tachyons, are identified with the unitary\nirreducible representations of the \"full\" Poincare group (Poincare group plus\nspace-time reflections.) on the past time-like cone.",
    "arxiv_id": "physics/0601066",
    "authors": [
      "Jose N. Pecina-Cruz"
    ],
    "categories": [
      "physics.gen-ph"
    ],
    "title": "Tachyons or Antiparticles?",
    "url": "https://arxiv.org/abs/physics/0601066"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3918ded3-4326-406d-b340-90423e2344f6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}