{
  "annotation_id": "6f8c2b9e-c16f-44b4-aedb-b513fa245a4f",
  "date_created": "2026-03-02T18:02:16.663000Z",
  "date_modified": "2026-03-02T18:02:16.663000Z",
  "file_hash": "85cdd8ea99646ff700fbe6bfd173bc992fb648a9584d63ab9cf2fc77b27428ca",
  "private": false,
  "record": {
    "abstract": "We investigate decoherence channels that are modelled as a sequence of\ncollisions of a quantum system (e.g., a qubit) with particles (e.g., qubits) of\nthe environment. We show that collisions induce decoherence when a bi-partite\ninteraction between the system qubit and an environment (reservoir) qubit is\ndescribed by the controlled-U unitary transformation (gate). We characterize\ndecoherence channels and in the case of a qubit we specify the most general\ndecoherence channel and derive a corresponding master equation. Finally, we\nanalyze entanglement that is generated during the process of decoherence\nbetween the system and its environment.",
    "arxiv_id": "quant-ph/0505040",
    "authors": [
      "Mario Ziman",
      "Vladimir Buzek"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.72.022110",
    "journal_ref": "Phys.Rev.A 72, 022110 (2005)",
    "title": "All (qubit) decoherences: Complete characterization and physical   implementation",
    "url": "https://arxiv.org/abs/quant-ph/0505040"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b074d05f-4e38-40de-91cf-ad2e0da07a83",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}