{
  "annotation_id": "82d5427a-59d2-4b7f-a268-2feac8eb4400",
  "date_created": "2026-03-02T18:02:09.949000Z",
  "date_modified": "2026-03-02T18:02:09.949000Z",
  "file_hash": "c17086786462f617255758de942c156643dfff1f2359d79a5e67479ce7f52e23",
  "private": false,
  "record": {
    "abstract": "In this paper we calculate the loss of fidelity due to quantum leakage for\nthe Josephson charge qubit (JCQ) in virtue of the Mathieu functions. It is\nshown that for an present typical parameters of JCQ E_{J}/E_{ch}~0.02, the loss\nof the fidelity per elementary operation is about 10^(-4) which satisfy the\nDiVincenzo\u0027s low decoherence criterion. By appropriately improving the design\nof the Josephson junction, namely, decreasing E_{J}/E_{ch} to 0.01, the loss of\nfidelity per elementary operation can decrease to 10^(-6) even smaller.",
    "arxiv_id": "quant-ph/0407027",
    "authors": [
      "Xian-Ting Liang",
      "Yong-Jian Xiong"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1142/S0217984905008268",
    "journal_ref": "Modern Physics Letters B 19 (2005) 371-378",
    "title": "The Loss of fidelity due to quantum leakage for Josephson charge qubits",
    "url": "https://arxiv.org/abs/quant-ph/0407027"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "416350d4-fab3-4dd9-bb8c-0c28e2fcd039",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}