{
  "annotation_id": "711530ea-81f9-41e1-a4bc-a065488fd4b2",
  "date_created": "2026-03-02T18:01:51.844000Z",
  "date_modified": "2026-03-02T18:01:51.844000Z",
  "file_hash": "812766e1e0d8e6c4f403335e7368b87c90e8319686b3ce3258106e5cf860310d",
  "private": false,
  "record": {
    "abstract": "One of us quant-ph/0206077 (Nucl. Phys. B, 1970, 21, 321) has shown that for\nthe particle with zero mass and spin s=1/2 there are three types of\ntwo-component equations (or one four-component equation with three different\nsubsidiary conditions) which differ from one another by P, T and C properties.\nOne of these equations is the two-component Weyl equation. In this note we give\ntwo other relativistic invariant equations.",
    "arxiv_id": "quant-ph/0206078",
    "authors": [
      "Wilhelm I. Fushchych",
      "A. L. Grishchenko"
    ],
    "categories": [
      "quant-ph",
      "math-ph",
      "math.MP",
      "nlin.SI"
    ],
    "journal_ref": "Lett.Nuovo Cim. 4S1 (1970) 927-928",
    "title": "On the CP-noninvariant equations for the particle with zero mass and   spin s=1/2",
    "url": "https://arxiv.org/abs/quant-ph/0206078"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6d1708ec-c42e-4cb4-aa79-b6ddf366c239",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}