{
  "annotation_id": "dca1b2ef-3ecb-46e0-b15a-af6fd47c2e8a",
  "date_created": "2026-03-02T18:02:27.348000Z",
  "date_modified": "2026-03-02T18:02:27.348000Z",
  "file_hash": "9f1a0ac1836b7510b7e28747b8316e1c30156b3614355426aef95ffb7fb4f247",
  "private": false,
  "record": {
    "abstract": "We have developed semiconductor point contact devices in which nuclear spins\nin a nanoscale region are coherently controlled by all-electrical methods.\nDifferent from the standard nuclear-magnetic resonance technique, the\nlongitudinal magnetization of nuclear spins is directly detected by measuring\nresistance, resulting in ultra-sensitive detection of the microscopic quantity\nof nuclear spins. All possible coherent oscillations have been successfully\ndemonstrated between two levels from four nuclear spin states of I = 3/2\nnuclei. Quantum information processing is discussed based on two fictitious\nqubits of an I = 3/2 system and methods are described for performing arbitrary\nlogical gates both on one and two qubits. A scheme for quantum state tomography\nbased on Mz-detection is also proposed. As the starting point of quantum\nmanipulations, we have experimentally prepared the effective pure states for\nthe I = 3/2 nuclear spin system.",
    "arxiv_id": "quant-ph/0605199",
    "authors": [
      "Y. Hirayama",
      "A. Miranowicz",
      "T. Ota",
      "G. Yusa",
      "K. Muraki",
      "S. K. Ozdemir",
      "N. Imoto"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.mes-hall"
    ],
    "doi": "10.1088/0953-8984/18/21/S13",
    "journal_ref": "J. Phys.: Condens. Matter 18 (2006) S885-S900",
    "title": "Nanometre-scale nuclear-spin device for quantum information processing",
    "url": "https://arxiv.org/abs/quant-ph/0605199"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "aada9496-58eb-40c9-90b0-6fdb2c42dd0a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}