{
  "annotation_id": "1016d0a2-5e05-4455-af8a-f063f8ab0bb8",
  "date_created": "2026-03-02T18:02:13.403000Z",
  "date_modified": "2026-03-02T18:02:13.403000Z",
  "file_hash": "8acdd001bfb3d558d31b9f27c726522ba17c37ae9c225a93bd7b00c9ff3ca825",
  "private": false,
  "record": {
    "abstract": "Taking the excess electron spin in a unit cell of semiconductor multiple\nquantum-dot structure as a qubit, we can implement scalable quantum computation\nwithout resorting to spin-spin interactions. The technique of single electron\ntunnelings and the structure of quantum-dot cellular automata (QCA) are used to\ncreate a charge entangled state of two electrons which is then converted into\nspin entanglement states by using single spin rotations. Deterministic\ntwo-qubit quantum gates can also be manipulated using only single spin\nrotations with help of QCA. A single-short read-out of spin states can be\nrealized by coupling the unit cell to a quantum point contact.",
    "arxiv_id": "quant-ph/0502002",
    "authors": [
      "Wei-Min Zhang",
      "Yin-Zhong Wu",
      "Chopin Soo"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Free spin quantum computation with semiconductor nanostructures",
    "url": "https://arxiv.org/abs/quant-ph/0502002"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "12b2299f-f907-4497-ab6c-636b20eb24bd",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}