{
  "annotation_id": "316f32b4-8b85-4be0-b8a5-19a0e25f56b9",
  "date_created": "2026-03-02T18:02:41.047000Z",
  "date_modified": "2026-03-02T18:02:41.047000Z",
  "file_hash": "d473da469aff79257a82b23729957d1803857537bba4c21356b090957518ae52",
  "private": false,
  "record": {
    "abstract": "We show how to create maximally entangled EPR pairs between spatially distant\natoms, each of them inside a high-Q optical cavity, by sending photons through\na general, noisy channel, such as a standard optical fiber. An error correction\nscheme that uses few auxiliary atoms in each cavity effectively eliminates\nphotoabsorption and other transmission errors. This realizes the `absorption\nfree channel.\u0027 A concatenation protocol using the absorption free channel\nallows for quantum communication with single qubits over distances much larger\nthan the coherence length of the channel.",
    "arxiv_id": "quant-ph/9712027",
    "authors": [
      "H. -J. Briegel",
      "W. D\u00fcr",
      "S. J. van Enk",
      "J. I. Cirac",
      "P. Zoller"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Quantum communication and the creation of maximally entangled pairs of   atoms over a noisy channel",
    "url": "https://arxiv.org/abs/quant-ph/9712027"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "88c2372b-c2b6-4f82-8493-f7f965da6699",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}