{
  "annotation_id": "1c19c42c-a4d2-4ad8-8ab6-523ec699310b",
  "date_created": "2026-03-02T18:02:23.883000Z",
  "date_modified": "2026-03-02T18:02:23.883000Z",
  "file_hash": "e609c88e6135d3303b3d3e7f0912d11c38c8c99a38c6d37f0f6aa6bdbb7f8986",
  "private": false,
  "record": {
    "abstract": "We propose an approach to realize an $n$-qubit controlled-$U$ gate with\nsuperconducting quantum interference devices (SQUIDs) in cavity QED. In this\napproach, the two lowest levels of a SQUID represent the two logical states of\na qubit while a higher-energy intermediate level serves the gate manipulation.\nOur method operates essentially by creating a single photon through one of the\ncontrol SQUIDs and then performing an arbitrary unitrary transformation on the\ntarget SQUID with the assistance of the cavity photon. In addition, we show\nthat the method can be applied to implement an $n $% -qubit controlled-$U$ gate\nwith atomic qubits in cavity QED.",
    "arxiv_id": "quant-ph/0511206",
    "authors": [
      "Chui-Ping Yang",
      "Siyuan Han"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.73.032317",
    "title": "Realization of an n-qubit controlled-U gate with superconducting quantum   interference devices or atoms in cavity QED",
    "url": "https://arxiv.org/abs/quant-ph/0511206"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d9ef3759-7d31-4a3b-b0ac-25049ee9b058",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}