{
  "annotation_id": "0c21dc8f-1bc4-4d51-90e6-4914b92e563e",
  "date_created": "2026-03-02T18:02:06.398000Z",
  "date_modified": "2026-03-02T18:02:06.398000Z",
  "file_hash": "55249db5e970797d004888b29958077d33c44e0699f6354f36dbd9e65c94310f",
  "private": false,
  "record": {
    "abstract": "We study the secrecy properties of Gaussian states under Gaussian operations.\nAlthough such operations are useless for quantum distillation, we prove that it\nis possible to distill a secret key secure against any attack from sufficiently\nentangled Gaussian states with non-positive partial transposition. Moreover,\nall such states allow for key distillation, when Eve is assumed to perform\nfinite-size coherent attacks before the reconciliation process.",
    "arxiv_id": "quant-ph/0405047",
    "authors": [
      "M. Navascues",
      "J. Bae",
      "J. I. Cirac",
      "M. Lewenstein",
      "A. Sanpera",
      "A. Acin"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.94.010502",
    "journal_ref": "Phys. Rev. Lett. 94, 010502 (2005)",
    "title": "Key distillation from Gaussian states by Gaussian operations",
    "url": "https://arxiv.org/abs/quant-ph/0405047"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8f48dc9c-a468-4331-84a1-588f5757b00a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}