{
  "annotation_id": "d9784867-ca9e-4cb9-aaa1-47d88a4a848b",
  "date_created": "2026-03-02T18:02:37.074000Z",
  "date_modified": "2026-03-02T18:02:37.074000Z",
  "file_hash": "51a6cd31c8e3623272d66bd43b8e299ae6c029bfd93f7bf118bbc71b9e895771",
  "private": false,
  "record": {
    "abstract": "A framework for a quantum mechanical information theory is introduced that is\nbased entirely on density operators, and gives rise to a unified description of\nclassical correlation and quantum entanglement. Unlike in classical (Shannon)\ninformation theory, quantum (von Neumann) conditional entropies can be negative\nwhen considering quantum entangled systems, a fact related to quantum\nnon-separability. The possibility that negative (virtual) information can be\ncarried by entangled particles suggests a consistent interpretation of quantum\ninformational processes.",
    "arxiv_id": "quant-ph/9512022",
    "authors": [
      "N. J. Cerf",
      "C. Adami"
    ],
    "categories": [
      "quant-ph",
      "atom-ph"
    ],
    "doi": "10.1103/PhysRevLett.79.5194",
    "journal_ref": "Phys.Rev.Lett. 79 (1997) 5194",
    "title": "Negative entropy and information in quantum mechanics",
    "url": "https://arxiv.org/abs/quant-ph/9512022"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c8393c9b-9e57-4215-b3aa-0e25c90e867e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}