{
  "annotation_id": "a4b12387-61c5-4829-b23e-ead80996622b",
  "date_created": "2026-03-02T18:02:20.024000Z",
  "date_modified": "2026-03-02T18:02:20.024000Z",
  "file_hash": "bd3afc2b8e8bc95265380b22f35407e3c5c28cd8c13b10bf7e7a5b3535a2bc27",
  "private": false,
  "record": {
    "abstract": "We discuss the representation of the $SO(3)$ group by two-qubit maximally\nentangled states (MES). We analyze the correspondence between $SO(3)$ and the\nset of two-qubit MES which are experimentally realizable. As a result, we offer\na new interpretation of some recently proposed experiments based on MES.\nEmploying the tools of quantum optics we treat in terms of two-qubit MES some\nclassical experiments in neutron interferometry, which showed the $\\pi $-phase\naccrued by a spin-$1/2$ particle precessing in a magnetic field. By so doing,\nwe can analyze the extent to which the recently proposed experiments - and\nfuture ones of the same sort - would involve essentially new physical aspects\nas compared with those performed in the past. We argue that the proposed\nexperiments do extend the possibilities for displaying the double connectedness\nof $SO(3)$, although for that to be the case it results necessary to map\nelements of $SU(2)$ onto physical operations acting on two-level systems.",
    "arxiv_id": "quant-ph/0511034",
    "authors": [
      "F. De Zela"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/1464-4266/7/11/009",
    "journal_ref": "J. Opt. B: Quantum Semiclass. Opt. 7 (2005) 372-380",
    "title": "Topological phase for entangled two-qubit states and the representation   of the SO(3)group",
    "url": "https://arxiv.org/abs/quant-ph/0511034"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0884913d-a35e-44f6-a002-18a994cd3646",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}