{
  "annotation_id": "8ab68220-64a5-4edd-9d1d-6c1f973506c9",
  "date_created": "2026-03-02T18:02:03.121000Z",
  "date_modified": "2026-03-02T18:02:03.121000Z",
  "file_hash": "d72e0f7929ff1ab5157d548b436caf27a57c699c85699372060acb48f5641a32",
  "private": false,
  "record": {
    "abstract": "In the effort to design and to construct a quantum computer, several leading\nproposals make use of spin-based qubits. These designs generally assume that\nspins undergo pairwise interactions. We point out that, when several spins are\nengaged mutually in pairwise interactions, the quantitative strengths of the\ninteractions can change and qualitatively new terms can arise in the\nHamiltonian, including four-body interactions. In parameter regimes of\nexperimental interest, these coherent effects are large enough to interfere\nwith computation, and may require new error correction or avoidance techniques.",
    "arxiv_id": "quant-ph/0401081",
    "authors": [
      "Ari Mizel",
      "Daniel A. Lidar"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.92.077903",
    "journal_ref": "Phys. Rev. Lett. 92, 077903 (2004)",
    "title": "Three and Four-Body Interactions in Spin-Based Quantum Computers",
    "url": "https://arxiv.org/abs/quant-ph/0401081"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ff73ff9c-dd44-4f39-ac04-bff22e38272c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}