{
  "annotation_id": "c25bbea6-0a75-442f-b15f-2962176970e8",
  "date_created": "2026-03-02T18:01:41.572000Z",
  "date_modified": "2026-03-02T18:01:41.572000Z",
  "file_hash": "2099db0807cb0658fb3dec1088a79dd8bfa715f769b59cff1955f34a8b35a77e",
  "private": false,
  "record": {
    "abstract": "I describe a proposal to construct a quantum information processor using\nferroelectrically coupled Ge/Si quantum dots. The spin of single electrons form\nthe fundamental qubits. Small (\u003c10 nm diameter) Ge quantum dots are optically\nexcited to create spin polarized electrons in Si. The static polarization of an\nepitaxial ferroelectric thin film confines electrons laterally in the\nsemiconductor; spin interactions between nearest neighbor electrons are\nmediated by the nonlinear process of optical rectification. Single qubit\noperations are achieved through \"g-factor engineering\" in the Ge/Si structures;\nspin-spin interactions occur through Heisenberg exchange, controlled by\nferroelectric gates. A method for reading out the final state, while required\nfor quantum computing, is not described; electronic approaches involving single\nelectron transistors may prove fruitful in satisfying this requirement.",
    "arxiv_id": "quant-ph/0101026",
    "authors": [
      "Jeremy Levy"
    ],
    "categories": [
      "quant-ph",
      "cond-mat"
    ],
    "doi": "10.1103/PhysRevA.64.052306",
    "title": "Quantum Information Processing with Ferroelectrically Coupled Quantum   Dots",
    "url": "https://arxiv.org/abs/quant-ph/0101026"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4d042bec-05fb-49ba-b11e-e1f219592688",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}