{
  "annotation_id": "82675bbe-e3cd-4252-ae1a-d789a13e1c3d",
  "date_created": "2026-03-02T18:02:44.532000Z",
  "date_modified": "2026-03-02T18:02:44.532000Z",
  "file_hash": "d543ffc391bd8209c354ef409449cfdd80892d91eefd00566dcef68b9ce92f96",
  "private": false,
  "record": {
    "abstract": "We present a scheme for controlling the decoherence of a linear superposition\nof two coherent states with opposite phases in a high-Q microwave cavity, based\non the injection of appropriately prepared ``probe\u0027\u0027 and ``feedback\u0027\u0027 Rydberg\natoms, improving the one presented in [D. Vitali et al., Phys. Rev. Lett. 79,\n2442 (1997)]. In the present scheme, the information transmission from the\nprobe to the feedback atom is directly mediated by a second auxiliary cavity.\nThe detection efficiency for the probe atom is no longer a critical parameter,\nand the decoherence time of the superposition state can be significantly\nincreased using presently available technology.",
    "arxiv_id": "quant-ph/9902071",
    "authors": [
      "M. Fortunato",
      "J. M. Raimond",
      "P. Tombesi",
      "D. Vitali"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.60.1687",
    "journal_ref": "Phys. Rev. A 60, 1687 (1999)",
    "title": "Autofeedback scheme for preservation of macroscopic coherence in   microwave cavities",
    "url": "https://arxiv.org/abs/quant-ph/9902071"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f3bfee87-fec8-472d-aa02-67d6eea244e3",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}