{
  "annotation_id": "a1cc4758-29fb-49fb-96ae-ae4d121b29e5",
  "date_created": "2026-03-02T18:02:33.651000Z",
  "date_modified": "2026-03-02T18:02:33.651000Z",
  "file_hash": "dba45cc254f0a4bbe9ad2d4c1b13351e41a313cae53e9a6dbf5a3efd1b16a640",
  "private": false,
  "record": {
    "abstract": "We consider quantum error-correction codes for multimode bosonic systems,\nsuch as optical fields, that are affected by amplitude damping. Such a process\nis a generalization of an erasure channel. We demonstrate that the most\naccessible method of transforming optical systems with the help of passive\nlinear networks has limited usefulness in preparing and manipulating such\ncodes. These limitations stem directly from the recoverability condition for\none-photon loss. We introduce a three-photon code protecting against the first\norder of amplitude damping, i.e. a single photon loss, and discuss its\npreparation using linear optics with single-photon sources and conditional\ndetection. Quantum state and process tomography in the code subspace can be\nimplemented using passive linear optics and photon counting. An experimental\nproof-of-principle demonstration of elements of the proposed quantum error\ncorrection scheme for a one-photon erasure lies well within present\ntechnological capabilites.",
    "arxiv_id": "quant-ph/0702075",
    "authors": [
      "Wojciech Wasilewski",
      "Konrad Banaszek"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.75.042316",
    "journal_ref": "Phys. Rev. A 75, 042316 (2007)",
    "title": "Protecting an optical qubit against photon loss",
    "url": "https://arxiv.org/abs/quant-ph/0702075"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e83a0435-924c-4145-b5a0-f90e9efa89ec",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}