{
  "annotation_id": "05ffb4a2-72bb-4950-9c85-fc85266d6247",
  "date_created": "2026-03-02T18:01:38.617000Z",
  "date_modified": "2026-03-02T18:01:38.617000Z",
  "file_hash": "fe971381a3395eec5becb7e41793f2f55a61b54b251627cfc1add435d621acd6",
  "private": false,
  "record": {
    "abstract": "We prove the security of a quantum key distribution scheme based on\ntransmission of squeezed quantum states of a harmonic oscillator. Our proof\nemploys quantum error-correcting codes that encode a finite-dimensional quantum\nsystem in the infinite-dimensional Hilbert space of an oscillator, and protect\nagainst errors that shift the canonical variables p and q. If the noise in the\nquantum channel is weak, squeezing signal states by 2.51 dB (a squeeze factor\ne^r=1.34) is sufficient in principle to ensure the security of a protocol that\nis suitably enhanced by classical error correction and privacy amplification.\nSecure key distribution can be achieved over distances comparable to the\nattenuation length of the quantum channel.",
    "arxiv_id": "quant-ph/0008046",
    "authors": [
      "Daniel Gottesman",
      "John Preskill"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.63.022309",
    "journal_ref": "Phys.Rev. A63 (2001) 022309",
    "title": "Secure quantum key distribution using squeezed states",
    "url": "https://arxiv.org/abs/quant-ph/0008046"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4ba60358-21a1-46d6-b185-d4f94d9a147f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}