{
  "annotation_id": "72b0cf95-f907-46e3-bd14-015571540a76",
  "date_created": "2026-03-02T18:01:38.008000Z",
  "date_modified": "2026-03-02T18:01:38.008000Z",
  "file_hash": "6214a8802c496952e3800dcf25626069933a69b84c4691a118717a9019b216a4",
  "private": false,
  "record": {
    "abstract": "I derive a tight bound between the quality of estimating the state of a\nsingle copy of a $d$-level system, and the degree the initial state has to be\naltered in course of this procedure. This result provides a complete analytical\ndescription of the quantum mechanical trade-off between the information gain\nand the quantum state disturbance expressed in terms of mean fidelities. I also\ndiscuss consequences of this bound for quantum teleportation using nonmaximally\nentangled states.",
    "arxiv_id": "quant-ph/0003123",
    "authors": [
      "Konrad Banaszek"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.86.1366",
    "journal_ref": "Phys. Rev. Lett. 86, 1366 (2001)",
    "title": "Fidelity balance in quantum operations",
    "url": "https://arxiv.org/abs/quant-ph/0003123"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "bd3e9908-75b9-4790-bdd4-a4339464f4a3",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}