{
  "annotation_id": "e586981b-55b3-40f1-8277-b236ec897d78",
  "date_created": "2026-03-02T18:01:42.422000Z",
  "date_modified": "2026-03-02T18:01:42.422000Z",
  "file_hash": "52678db3710312d88c8c1f8080e4c7e66671d969fa80a24a2592cd7b02dac5fa",
  "private": false,
  "record": {
    "abstract": "The quantum channel subject to local interaction with two-level environment\nis studied. The two-level environment is regarded as a quantum bit (qubit) as\nwell as a pair of particles owned by Alice and Bob. The amount of entanglement\ninitially shared by Alice and Bob is distributed among these three qubits due\nto the interaction. In this model, we show that the singlet fraction of the\ndecohered quantum channel is uniquely determined by the distributed\nentanglement. When the decohered quantum channel is used under the standard\nteleportation scheme, the optimal teleportation fidelity is well understood by\nconsidering the remaining entanglement between environment and transmitted\nstate.",
    "arxiv_id": "quant-ph/0011069",
    "authors": [
      "Satoshi Ishizaka"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.63.034301",
    "journal_ref": "Phys. Rev. A 63, 034301 (2001)",
    "title": "Quantum channel locally interacting with environment",
    "url": "https://arxiv.org/abs/quant-ph/0011069"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "395c6160-cf08-427d-a292-80612b66f3a9",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}