{
  "annotation_id": "a5ec5ec1-0799-4770-88ac-8a8d75f76776",
  "date_created": "2026-03-02T18:01:42.187000Z",
  "date_modified": "2026-03-02T18:01:42.187000Z",
  "file_hash": "48c98652ca741712428b17d31ddfd278bc751757ed3c888e6895c83a70750dec",
  "private": false,
  "record": {
    "abstract": "If the interaction between qubits in a quantum computer has a non-diagonal\nform (e.g. the Heisenberg interaction), then one must be able to \"switch it\noff\" in order to prevent uncontrolled propagation of states. Therefore, such QC\nschemes typically demand local control of the interaction strength between each\npair of neighboring qubits. Here we demonstrate that this degree of control is\nnot necessary: it suffices to switch the interaction collectively - something\nthat can in principle be achieved by global fields rather than with local\nmanipulations. This observation may offer a significant simplification for\nvarious solid state, optical lattice and NMR implementations.",
    "arxiv_id": "quant-ph/0104117",
    "authors": [
      "Simon C. Benjamin"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.88.017904",
    "title": "Quantum Computing with Globally Controlled Exchange-type Interactions",
    "url": "https://arxiv.org/abs/quant-ph/0104117"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "33c51f71-a8f5-44d3-b2bd-511c757e9c84",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}