{
  "annotation_id": "36f0fba0-82ef-44cb-ad64-a068c5cf030e",
  "date_created": "2026-03-02T18:02:30.918000Z",
  "date_modified": "2026-03-02T18:02:30.918000Z",
  "file_hash": "b1127ec125ba8ffea375cbce77fec9bccf910aed655e536f5b878f54633764ca",
  "private": false,
  "record": {
    "abstract": "A fully general approach to the security analysis of continuous-variable\nquantum key distribution (CV-QKD) is presented. Provided that the quantum\nchannel is estimated via the covariance matrix of the quadratures, Gaussian\nattacks are shown to be optimal against all eavesdropping strategies, including\ncollective and coherent attacks. The proof is made strikingly simple by\ncombining a physical model of measurement, an entanglement-based description of\nCV-QKD, and a recent powerful result on the extremality of Gaussian states\n[Phys. Rev. Lett. 96, 080502 (2006)].",
    "arxiv_id": "quant-ph/0608032",
    "authors": [
      "Raul Garcia-Patron",
      "Nicolas J. Cerf"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.97.190503",
    "journal_ref": "Phys. Rev. Lett. 97, 190503 (2006).",
    "title": "Unconditional optimality of Gaussian attacks against continuous-variable   QKD",
    "url": "https://arxiv.org/abs/quant-ph/0608032"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e08d0e0f-a9d2-4477-a9b9-940bf6e41aa6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}