{
  "annotation_id": "b5c8f43e-56eb-4ae8-a5dc-4af0319755f3",
  "date_created": "2026-03-02T18:01:42.311000Z",
  "date_modified": "2026-03-02T18:01:42.311000Z",
  "file_hash": "7079b40ab5225d58e850ded0c8c5e51efda267a495d4435951ca4bf93058bb22",
  "private": false,
  "record": {
    "abstract": "Based on local unitary operators acting on a n-dimensional Hilbert-space, we\ninvestigate selective and collective operator basis sets for N-particle quantum\nnetworks. Selective cluster operators are used to derive the properties of\ngeneral cat-states for any n and N. Collective operators are conveniently used\nto account for permutation symmetry: The respective Hilbert-space dimension is\nthen only polynomial in N and governed by strong selection rules. These\nselection rules can be exploited for the design of decoherence-free subspaces\nas well as for the implementation of efficient routes to entanglement if\nsuspended switching between states of different symmetry classes could be\nrealized.",
    "arxiv_id": "quant-ph/0101138",
    "authors": [
      "Alexander Otte",
      "Guenter Mahler"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.62.012303",
    "journal_ref": "Phys. Rev. A 62, 012303 (2000)",
    "title": "Adapted-operator representations: Selective versus collective properties   of quantum networks",
    "url": "https://arxiv.org/abs/quant-ph/0101138"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0a623278-ad7e-43ed-ad94-11d7696e8cbf",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}