{
  "annotation_id": "f227eb6d-4f65-4cd3-a893-8a7264f72df0",
  "date_created": "2026-03-02T18:02:37.114000Z",
  "date_modified": "2026-03-02T18:02:37.114000Z",
  "file_hash": "f1c887f4ea79fce2b3c1ffe1aed961509016ca556555f38c98ed70cdf511c081",
  "private": false,
  "record": {
    "abstract": "Decoherence and loss will limit the practicality of quantum cryptography and\ncomputing unless successful error correction techniques are developed. To this\nend, we have discovered a new scheme for perfectly detecting and rejecting the\nerror caused by loss (amplitude damping to a reservoir at T=0), based on using\na dual-rail representation of a quantum bit. This is possible because (1)\nbalanced loss does not perform a ``which-path\u0027\u0027 measurement in an\ninterferometer, and (2) balanced quantum nondemolition measurement of the\n``total\u0027\u0027 photon number can be used to detect loss-induced quantum jumps\nwithout disturbing the quantum coherence essential to the quantum bit. Our\nresults are immediately applicable to optical quantum computers using single\nphotonics devices.",
    "arxiv_id": "quant-ph/9604031",
    "authors": [
      "Isaac L. Chuang",
      "Yoshihisa Yamamoto"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.76.4281",
    "journal_ref": "Phys. Rev. Lett. May 13, 1996",
    "title": "Quantum Bit Regeneration",
    "url": "https://arxiv.org/abs/quant-ph/9604031"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8054028a-09da-4a02-8a49-ecbabe138276",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}