{
  "annotation_id": "bdda6438-e3a1-4602-8033-b1ad0c34c1c2",
  "date_created": "2026-03-02T18:02:34.609000Z",
  "date_modified": "2026-03-02T18:02:34.609000Z",
  "file_hash": "897e300e35de4258fc9faea814403382c15ab8acc49511a20739ed325550127b",
  "private": false,
  "record": {
    "abstract": "How correlated are two quantum systems from the perspective of a third? We\nanswer this by providing an optimal quantum state redistribution protocol for\nmultipartite product sources. Specifically, given an arbitrary quantum state of\nthree systems, where Alice holds two and Bob holds one, we identify the cost,\nin terms of quantum communication and entanglement, for Alice to give one of\nher parts to Bob. The communication cost gives the first known operational\ninterpretation to quantum conditional mutual information. The optimal procedure\nis self-dual under time reversal and is perfectly composable. This generalizes\nknown protocols such as the state merging and fully quantum Slepian-Wolf\nprotocols, from which almost every known protocol in quantum Shannon theory can\nbe derived.",
    "arxiv_id": "quant-ph/0612050",
    "authors": [
      "Igor Devetak",
      "Jon Yard"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.100.230501",
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "title": "The exact cost of redistributing multipartite quantum states",
    "url": "https://arxiv.org/abs/quant-ph/0612050"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5ea299e1-6e0e-4547-927a-5dfcddb432e2",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}