{
  "annotation_id": "7f129ce0-6bf9-4435-9f4a-77d2b21e4faa",
  "date_created": "2026-03-02T18:01:52.290000Z",
  "date_modified": "2026-03-02T18:01:52.290000Z",
  "file_hash": "3c75871e53d3e27d38c4abd677e6ccc2bb339c8e4f8de549ad54ab4b77170e16",
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  "record": {
    "abstract": "The purpose of the present note is to propose, in the framework of\nrelativistic quantum mechanics, a new Poincare-invariant equation for two\nparticles with masses m_1, m_2 and spin s_1=s_2=1/2. It is a first-order linear\ndifferential equation for the eight-component wave function. With the help of\nthis equation the description of the motion of two-particle systems is reduced\nto the description of one-particle systems in the (1+6)-dimensional Minkowski\nspace which can be in two spin states (s=0 or s=1).",
    "arxiv_id": "quant-ph/0206154",
    "authors": [
      "Wilhelm I. Fushchych"
    ],
    "categories": [
      "quant-ph"
    ],
    "journal_ref": "Lettere al Nuovo Cimento, 1974, V. 10, N 4, P. 163-167",
    "title": "On a motion equation for two particles in relativistic quantum mechanics",
    "url": "https://arxiv.org/abs/quant-ph/0206154"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ac9c71ff-b667-4084-8619-5daa6bae82d0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}