{
  "annotation_id": "3b3b029b-2ac4-442c-969a-9fb2dedf3156",
  "date_created": "2026-03-02T18:01:35.819000Z",
  "date_modified": "2026-03-02T18:01:35.819000Z",
  "file_hash": "c18e951705e83506bf01265bce36973e535153b26730149a6490e50654d07f77",
  "private": false,
  "record": {
    "abstract": "We derive the transformation for the optimal universal quantum anti-cloner\nwhich produces two anti-parallel outputs for a single input state. The fidelity\nis shown to be 2/3 which is same as the measurement fidelity. We consider a\nprobabilistic quantum anti-cloner and show quantum states can be anti-cloned\nexactly with non-zero probability and its efficiency is higher than the\nefficiency of distinguishing between the two states.",
    "arxiv_id": "quant-ph/0001105",
    "authors": [
      "David D. Song",
      "Lucien Hardy"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Quantum Anti-Cloning",
    "url": "https://arxiv.org/abs/quant-ph/0001105"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f5e6196d-0749-4a81-b936-c10487f796a6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}