{
  "annotation_id": "90bfda10-2425-42d2-9a7d-26309d802d96",
  "date_created": "2026-03-02T18:02:45.184000Z",
  "date_modified": "2026-03-02T18:02:45.184000Z",
  "file_hash": "38e69833796e5e43306159299f96c633f5b1808d4545ccc3b8dc6eb758185702",
  "private": false,
  "record": {
    "abstract": "A quantum computer based on an asymmetric coupled dot system has been\nproposed and shown to operate as the controlled-NOT-gate. The basic idea is (1)\nthe electron is localized in one of the asymmetric coupled dots. (2)The\nelectron transfer takes place from one dot to the other when the energy-levels\nof the coupled dots are set close. (3)The Coulomb interaction between the\ncoupled dots mutually affects the energy levels of the other coupled dots. The\ndecoherence time of the quantum computation and the measurement time are\nestimated. The proposed system can be realized by developing the technology of\nthe single-electron memory using Si nanocrystals and the direct combination of\nthe quantum circuit and the conventional circuit is possible.",
    "arxiv_id": "quant-ph/9902031",
    "authors": [
      "Tetsufumi Tanamoto"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.61.022305",
    "journal_ref": "Phys.Rev.A61:022305,2000",
    "title": "Quantum gates by coupled asymmetric quantum dots and controlled-NOT-gate   operation",
    "url": "https://arxiv.org/abs/quant-ph/9902031"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c83002cd-f711-414f-81c9-ecfc6f87424f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}