{
  "annotation_id": "b64177f8-edbc-4597-8ad9-5bc57fd0a917",
  "date_created": "2026-03-02T18:01:55.454000Z",
  "date_modified": "2026-03-02T18:01:55.454000Z",
  "file_hash": "6a22f358c6dc5d49f408e1635cd1d4f7de852cb02e72e53dd26c52228dc5c2a3",
  "private": false,
  "record": {
    "abstract": "We present a protocol for deterministic and highly efficient quantum\ncryptography with entangled photon pairs in a 4x4-dimentional Hilbert space.\nTwo communicating parties, Alice and Bob first share a both polarization- and\npath-entangled photon pair, and then each performs a complete Bell-state\nmeasurement on their own photon in one of two complementary Bell-state bases.\nIt is demonstrated that each measurement in which both Alice and Bob register a\nphoton can build certain perfect correlation and generate 1.5 key bits on\naverage. The security of our protocol is guaranteed by the non-cloning theorem.",
    "arxiv_id": "quant-ph/0211098",
    "authors": [
      "Zhi Zhao",
      "Tao Yang",
      "Zeng-Bing Chen",
      "Jiangfeng Du",
      "Jian-Wei Pan"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Deterministic and Highly Efficient Quantum Cryptography with Entangled   Photon Pairs",
    "url": "https://arxiv.org/abs/quant-ph/0211098"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "aedf08a1-1b09-48d9-a661-0fc18b3f7d9e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}