{
  "annotation_id": "e7c2c975-903c-4d86-9955-350a55478c39",
  "date_created": "2026-03-02T18:02:34.502000Z",
  "date_modified": "2026-03-02T18:02:34.502000Z",
  "file_hash": "60c3fb26dacc64961f4ce65f3368f52d137f87d81957b4206ee2e9b852fa1111",
  "private": false,
  "record": {
    "abstract": "We propose a quantum-information processor that consists of decoherence-free\nlogical qubits encoded into arrays of dipole-coupled qubits. High-fidelity\nsingle-qubit operations are performed deterministically within a\ndecoherence-free subsystem without leakage via global addressing of bichromatic\nlaser fields. Two-qubit operations are realized locally with four physical\nqubits, and between separated logical qubits using linear optics. We show how\nto prepare cluster states using this method. We include all\nnon-nearest-neighbor effects in our calculations, and we assume the qubits are\nnot located in the Dicke limit. Although our proposal is general to any system\nof dipole-coupled qubits, throughout the paper we use nitrogen-vacancy (NV)\ncenters in diamond as an experimental context for our theoretical results.",
    "arxiv_id": "quant-ph/0703081",
    "authors": [
      "Peter G. Brooke"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.75.022320",
    "journal_ref": "Phys. Rev. A 75, 022320 (2007)",
    "title": "Decoherence-free quantum-information processing using dipole-coupled   qubits",
    "url": "https://arxiv.org/abs/quant-ph/0703081"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8cd5c190-123c-434b-b32b-9548b9ccba2e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}