{
  "annotation_id": "9f5da95f-6513-4a5c-8d7e-161610a3fe64",
  "date_created": "2026-03-02T18:01:39.141000Z",
  "date_modified": "2026-03-02T18:01:39.141000Z",
  "file_hash": "7ea8bfbbf55b1f838993b6b2f7339cd34abab8c36e152567bcb52e01e008a67f",
  "private": false,
  "record": {
    "abstract": "In this paper, we present the experimental realization of multi-qubit gates\n$% \\Lambda_n(not) $ in macroscopic ensemble of three-qubit and four-qubit\nmolecules. Instead of depending heavily on the two-bit universal gate, which\nserved as the basic quantum operation in quantum computing, we use pulses of\nwell-defined frequency and length that simultaneously apply to all qubits in a\nquantum register. It appears that this method is experimentally convenient when\nthis procedure is extended to more qubits on some quantum computation, and it\ncan also be used in other physical systems.",
    "arxiv_id": "quant-ph/0008110",
    "authors": [
      "J. F. Du",
      "M. J. Shi",
      "J. H. Wu",
      "X. Y. Zhou",
      "R. D. Han"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.63.042302",
    "journal_ref": "Physics Review A 63, 042302 (2001)",
    "title": "Implementing universal multi-qubit quantum logic gates in three and   four-spin systems at room temperature",
    "url": "https://arxiv.org/abs/quant-ph/0008110"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5e85336d-f39d-4e5a-8536-366a888b3bac",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}