{
  "annotation_id": "b2662514-e78b-4221-8051-e38f7fff12f8",
  "date_created": "2026-03-02T18:02:23.780000Z",
  "date_modified": "2026-03-02T18:02:23.780000Z",
  "file_hash": "3adf3087755813095fbc1d0332744faa4afa8843a8aa4bf9c5109677c4d55664",
  "private": false,
  "record": {
    "abstract": "We analyze robustness of decoherence-free (DF) subspace in charge qubits when\nthere are a local structure and non-uniformity that violate collective\ndecoherence measurement condition. We solve master equations of up to four\ncharge qubits and a detector as two serially coupled quantum point contacts\n(QPC) with an island structure. We show that robustness of DF states is\nstrongly affected by local structure as well as by non-uniformities of qubits.",
    "arxiv_id": "quant-ph/0512244",
    "authors": [
      "Tetsufumi Tanamoto",
      "Shinobu Fujita"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1016/j.physe.2006.03.098",
    "journal_ref": "Physica E34, 530 (2006)",
    "title": "The Effect of Local Structure and Non-uniformity on Decoherence-Free   States of Charge Qubits",
    "url": "https://arxiv.org/abs/quant-ph/0512244"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f6a74e4b-7258-4fef-8949-5187ed83aa33",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}