{
  "annotation_id": "4daacf89-0a43-422f-9114-2f697fed9d6a",
  "date_created": "2026-03-02T18:02:13.759000Z",
  "date_modified": "2026-03-02T18:02:13.759000Z",
  "file_hash": "266e53de0590499a6ea61ba3e96375fe08d75e4851d4718f2ef6a4f7db34f0b1",
  "private": false,
  "record": {
    "abstract": "We introduce a general scheme to realize perfect storage of quantum\ninformation in systems of interacting qubits. This novel approach is based on\n{\\it global} external controls of the Hamiltonian, that yield time-periodic\ninversions in the dynamical evolution, allowing a perfect periodic quantum\nstate recontruction. We illustrate the method in the particularly interesting\nand simple case of spin systems affected by XY residual interactions with or\nwithout static imperfections. The global control is achieved by step\ntime-inversions of an overall topological phase of the Aharonov-Bohm type. Such\na scheme holds both at finite size and in the thermodynamic limit, thus\nenabling the massive storage of arbitrarily large numbers of local states, and\nis stable against several realistic sources of noise and imperfections.",
    "arxiv_id": "quant-ph/0503107",
    "authors": [
      "S. M. Giampaolo",
      "F. Illuminati",
      "A. Di Lisi",
      "S. De Siena"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.other"
    ],
    "doi": "10.1134/S1054660X06100045",
    "journal_ref": "Laser Physics 16, 1411 (2006)",
    "title": "Engineering massive quantum memories by topologically time-modulated   spin rings",
    "url": "https://arxiv.org/abs/quant-ph/0503107"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "351837bc-bbce-4159-8303-734a2610a1b5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}