{
  "annotation_id": "ab2ca472-5906-4ad8-aca3-4154ae96947d",
  "date_created": "2026-03-02T18:02:26.463000Z",
  "date_modified": "2026-03-02T18:02:26.463000Z",
  "file_hash": "c9a2cc870fdb9cd691cfb5d787ba9cdff44fe439f0912430f3f975b3edbc36b2",
  "private": false,
  "record": {
    "abstract": "We demonstrate ultrafast coherent coupling between an atomic qubit stored in\na single trapped cadmium ion and a photonic qubit represented by two resolved\nfrequencies of a photon. Such ultrafast coupling is crucial for entangling\nnetworks of remotely-located trapped ions through photon interference, and is\nalso a key component for realizing ultrafast quantum gates between\nCoulomb-coupled ions.",
    "arxiv_id": "quant-ph/0603258",
    "authors": [
      "M. J. Madsen",
      "D. L. Moehring",
      "P. Maunz",
      "R. N. Kohn Jr.",
      "L. -M. Duan",
      "C. Monroe"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Ultrafast Coherent Coupling of Atomic Hyperfine and Photon Frequency   Qubits",
    "url": "https://arxiv.org/abs/quant-ph/0603258"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "296d53a2-a494-4b9a-9704-ea8be02d3ab6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}