{
  "annotation_id": "93c98af1-394e-4f01-bcd1-17355c36cb3c",
  "date_created": "2026-03-02T18:02:45.251000Z",
  "date_modified": "2026-03-02T18:02:45.251000Z",
  "file_hash": "e87cd3d7c10b737b1bf3060090e8668c1730b65ff673c92fd62fc092b3a6e678",
  "private": false,
  "record": {
    "abstract": "A potential implementation of quantum-information schemes in semiconductor\nnanostructures is studied. To this end, the formal theory of quantum encoding\nfor avoiding errors is recalled and the existence of noiseless states for model\nsystems is discussed. Based on this theoretical framework, we analyze the\npossibility of designing noiseless quantum codes in realistic semiconductor\nstructures. In the specific implementation considered, information is encoded\nin the lowest energy sector of charge excitations of a linear array of quantum\ndots. The decoherence channel considered is electron-phonon coupling We show\nthat besides the well-known phonon bottleneck, reducing single-qubit\ndecoherence, suitable many-qubit initial preparation as well as register design\nmay enhance the decoherence time by several orders of magnitude. This behaviour\nstems from the effective one-dimensional character of the phononic environment\nin the relevant region of physical parameters.",
    "arxiv_id": "quant-ph/9808036",
    "authors": [
      "Paolo Zanardi",
      "Fausto Rossi"
    ],
    "categories": [
      "quant-ph",
      "cond-mat"
    ],
    "doi": "10.1103/PhysRevB.59.8170",
    "journal_ref": "Phys.Rev.B59:8170,1999",
    "title": "Subdecoherent Information Encoding in a Quantum-Dot Array",
    "url": "https://arxiv.org/abs/quant-ph/9808036"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "931c300b-835f-4369-b8af-2a32e7e76d5e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}