{
  "annotation_id": "91fbdbe6-1065-4f47-8de0-e629ce0f021d",
  "date_created": "2026-03-02T18:01:51.841000Z",
  "date_modified": "2026-03-02T18:01:51.841000Z",
  "file_hash": "bd79574d668390b6a5a4b1ea334d298f73974d8221662e188297593f0d4e632c",
  "private": false,
  "record": {
    "abstract": "We show that two electrons confined in a square semiconductor quantum dot\nhave two isolated low-lying energy eigenstates, which have the potential to\nform the basis of scalable computing elements (qubits). Initialisation,\none-qubit and two-qubit universal gates, and readout are performed using\nelectrostatic gates and magnetic fields. Two-qubit transformations are\nperformed via the Coulomb interaction between electrons on adjacent dots.\nChoice of initial states and subsequent asymmetric tuning of the tunnelling\nenergy parameters on adjacent dots control the effect of this interaction.",
    "arxiv_id": "quant-ph/0206075",
    "authors": [
      "J. H. Jefferson",
      "M. Fearn",
      "D. L. J. Tipton",
      "T. P. Spiller"
    ],
    "categories": [
      "quant-ph",
      "cond-mat"
    ],
    "doi": "10.1103/PhysRevA.66.042328",
    "title": "Two-electron quantum dots as scalable qubits",
    "url": "https://arxiv.org/abs/quant-ph/0206075"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a5e4b72e-c58d-433f-b715-a2db92f1f86f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}