{
  "annotation_id": "b8e8e8ee-e225-4e61-9c48-7177fb7d9b04",
  "date_created": "2026-03-02T18:02:48.589000Z",
  "date_modified": "2026-03-02T18:02:48.589000Z",
  "file_hash": "61ecd2767444070f1ecf84229ffdb1e95458b91994185b8dc116662d5a487663",
  "private": false,
  "record": {
    "abstract": "We propose a new solid state implementation of a quantum computer (quputer)\nusing ballistic single electrons as flying qubits in 1D nanowires. We use a\nsingle electron pump (SEP) to prepare the initial state and a single electron\ntransistor (SET) to measure the final state. Single qubit gates are implemented\nusing quantum dots as phase shifters and electron waveguide couplers as beam\nsplitters. A Coulomb coupler acts as a 2-qubit gate, using a mutual phase\nmodulation effect. Since the electron phase coherence length in GaAs/AlGaAs\nheterostructures is of the order of 30$\\mu$m, several gates (tens) can be\nimplemented before the system decoheres.",
    "arxiv_id": "quant-ph/9907043",
    "authors": [
      "Radu Ionicioiu",
      "Gehan Amaratunga",
      "Florin Udrea"
    ],
    "categories": [
      "quant-ph",
      "cond-mat"
    ],
    "title": "Ballistic Single-Electron Quputer",
    "url": "https://arxiv.org/abs/quant-ph/9907043"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "be56eed7-fda5-42b3-b2f3-48ebac04e7d4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}