{
  "annotation_id": "7fba8f3f-d2cb-48f7-8c0b-f88f7827f7c4",
  "date_created": "2026-03-02T18:02:27.709000Z",
  "date_modified": "2026-03-02T18:02:27.709000Z",
  "file_hash": "6407a5834102c8bac88802445b21f3d65619b75de84d4ca0b0b67ec29af87a43",
  "private": false,
  "record": {
    "abstract": "We show how the entanglement in a wide range of continuous variable\nnon-Gaussian states can be preserved against decoherence for long-range quantum\ncommunication through an optical fiber. We apply protection via\ndecoherence-free subspaces and quantum dynamical decoupling to this end. The\nlatter is implemented by inserting phase shifters at regular intervals $\\Delta\n$ inside the fiber, where $\\Delta $ is roughly the ratio of the speed of light\nin the fiber to the bath high-frequency cutoff. Detailed estimates of relevant\nparameters are provided using the boson-boson model of system-bath interaction\nfor silica fibers, and $\\Delta $ is found to be on the order of a millimeter.",
    "arxiv_id": "quant-ph/0605157",
    "authors": [
      "Asoka Biswas",
      "Daniel A. Lidar"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.74.062303",
    "journal_ref": "Phys. Rev. A 74, 062303 (2006)",
    "title": "Robust transmission of non-Gaussian entanglement over optical fibers",
    "url": "https://arxiv.org/abs/quant-ph/0605157"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f53429bd-6f06-4d2b-b3ce-c0623476c79d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}