{
  "annotation_id": "5b20a39a-eade-4c6b-b3bd-0ac4106632c4",
  "date_created": "2026-03-02T18:01:00.753000Z",
  "date_modified": "2026-03-02T18:01:00.753000Z",
  "file_hash": "e447161999f0314f280586835c980a0000c7836594927e84e58ae9cf897cd402",
  "private": false,
  "record": {
    "abstract": "A relative position 4-vector is constructed for two spin-zero particles. Some\nadvantages of this relative position over Bakamjian-Thomas are pointed out. The\ncentre-of-mass (CM) and relative positions and momenta are an explicit\nrealisation of the so-called non-canonical covariant representation. The\nHamiltonian including potential terms is factorised into CM and relative\ncomponents, the latter is a Lorentz scalar readily evaluated in the CM rest\nframe when the relative position, momentum are canonical conjugates.",
    "arxiv_id": "physics/0510018",
    "authors": [
      "Shaun N Mosley"
    ],
    "categories": [
      "physics.class-ph",
      "hep-th",
      "physics.gen-ph",
      "quant-ph"
    ],
    "title": "Two particle realisation of the Poincare group with interaction",
    "url": "https://arxiv.org/abs/physics/0510018"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "217c892a-554d-4414-8d25-f21bed7aba54",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}