{
  "annotation_id": "1e3996c7-4b59-4554-96b7-14fdcebe6b38",
  "date_created": "2026-03-02T18:02:06.924000Z",
  "date_modified": "2026-03-02T18:02:06.924000Z",
  "file_hash": "2b3213e35bf21d5319fbee34cc7f9b620b8f2d69963b3f5dc6988bfce5d63bc5",
  "private": false,
  "record": {
    "abstract": "Based on the interaction between the radiation field and a superconductor, we\npropose a way to engineer quantum states using a SQUID charge qubit inside a\nmicrocavity. This device can act as a deterministic single photon source as\nwell as generate any Fock states and an arbitrary superposition of Fock states\nfor the cavity field. The controllable interaction between the cavity field and\nthe qubit can be realized by the tunable gate voltage and classical magnetic\nfield applied to the SQUID.",
    "arxiv_id": "quant-ph/0402189",
    "authors": [
      "Yu-xi Liu",
      "L. F. Wei",
      "Franco Nori"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.mes-hall",
      "cond-mat.supr-con"
    ],
    "doi": "10.1209/epl/i2004-10144-3",
    "journal_ref": "Europhysics Letters 67, 941-947 (2004)",
    "title": "Generation of nonclassical photon states using a superconducting qubit   in a microcavity",
    "url": "https://arxiv.org/abs/quant-ph/0402189"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "45313b24-0d15-49e6-b9df-be4b32f7d1aa",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}