{
  "annotation_id": "93e7a92c-a297-4c85-95f3-c49ca74261c2",
  "date_created": "2026-03-02T18:02:27.170000Z",
  "date_modified": "2026-03-02T18:02:27.170000Z",
  "file_hash": "2ce49f0696fed357e59fdbdd8e44363287dbfe03f71dbcb1701ac1353b5d9cee",
  "private": false,
  "record": {
    "abstract": "Any technology for quantum information processing (QIP) must embody within it\nquantum bits (qubits) and maintain control of their key quantum properties of\nsuperposition and entanglement. Typical QIP schemes envisage an array of\nphysical systems, such as electrons or nuclei, with each system representing a\ngiven qubit. For adequate control, systems must be distinguishable either by\nphysical separation or unique frequencies, and their mutual interactions must\nbe individually manipulable. These difficult requirements exclude many\nnanoscale technologies where systems are densely packed and continuously\ninteracting. Here we demonstrate a new paradigm: restricting ourselves to\nglobal control pulses we permit systems to interact freely and continuously,\nwith the consequence that qubits can become delocalized over the entire device.\nWe realize this using NMR studies of three carbon-13 nuclei in alanine,\ndemonstrating all the key aspects including a quantum mirror, one- and\ntwo-qubit gates, permutation of densely packed qubits and Deutsch algorithms.",
    "arxiv_id": "quant-ph/0606188",
    "authors": [
      "Joseph Fitzsimons",
      "Li Xiao",
      "Simon C. Benjamin",
      "Jonathan A. Jones"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.99.030501",
    "title": "Quantum Information Processing with Delocalized Qubits under Global   Control",
    "url": "https://arxiv.org/abs/quant-ph/0606188"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "35cc2edb-47fe-46b1-8336-f57dd3f8b2a2",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}