{
  "annotation_id": "e978f4b8-f780-4577-813c-5e74337dcf04",
  "date_created": "2026-03-02T18:02:00.293000Z",
  "date_modified": "2026-03-02T18:02:00.293000Z",
  "file_hash": "20a3673dbdb319ee371ece990d49abc795adcce8920af0c0ec5363791714dbe9",
  "private": false,
  "record": {
    "abstract": "When photons are sent through a fiber as part of a quantum communication\nprotocol, the error that is most difficult to correct is photon loss. Here, we\npropose and analyze a two-to-four qubit encoding scheme, which can recover the\nloss of one qubit in the transmission. This device acts as a repeater when it\nis placed in series to cover a distance larger than the attenuation length of\nthe fiber, and it acts as an optical quantum memory when it is inserted in a\nfiber loop. We call this dual-purpose device a ``quantum transponder.\u0027\u0027",
    "arxiv_id": "quant-ph/0306098",
    "authors": [
      "Robert M. Gingrich",
      "Pieter Kok",
      "Hwang Lee",
      "Farrokh Vatan",
      "Jonathan P. Dowling"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.91.217901",
    "journal_ref": "Phys. Rev. Lett. 91, 217901 (2003)",
    "title": "An All Linear Optical Quantum Memory Based on Quantum Error Correction",
    "url": "https://arxiv.org/abs/quant-ph/0306098"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "37fc3864-93cb-4b66-8677-e44550dc1882",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}