{
  "annotation_id": "d7fb0f8a-2163-44f7-9f19-0571ede6f3d4",
  "date_created": "2026-03-02T18:02:23.833000Z",
  "date_modified": "2026-03-02T18:02:23.833000Z",
  "file_hash": "87e510deef98355c0240ff9a594723ac70c3436d92b1eb2cdff49f2f6438b24c",
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  "record": {
    "abstract": "We present a linear optical scheme for error-free distribution of two-photon\npolarization entangled Bell states over noisy channels. The scheme can be\napplied to an elementary quantum repeater protocol with potentially significant\nimprovements in efficiency and system complexity. The scheme is based on the\nuse of polarization and time-bin encoding of photons and can perform\nsingle-pair, single-step purification with currently available technology.",
    "arxiv_id": "quant-ph/0601203",
    "authors": [
      "Demetrios Kalamidas"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.73.054304",
    "journal_ref": "Phys. Rev. A 73, 054304 (2006)",
    "title": "Linear optical scheme for error-free entanglement distribution and a   quantum repeater",
    "url": "https://arxiv.org/abs/quant-ph/0601203"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d360da6b-e607-4f1e-8143-d1f0317081a3",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}