{
  "annotation_id": "1241888d-9909-4a01-8ec4-9b4a65a6a2d3",
  "date_created": "2026-03-02T18:01:42.640000Z",
  "date_modified": "2026-03-02T18:01:42.640000Z",
  "file_hash": "1cb5decad55542a2b45321f0b2988c32b6087ecd93aae97da9a29509931122b2",
  "private": false,
  "record": {
    "abstract": "We present a formula that determines the optimal number of qubits per message\nthat allows asymptotically faithful compression of the quantum information\ncarried by an ensemble of mixed states. The set of mixed states determines a\ndecomposition of the Hilbert space into the redundant part and the irreducible\npart. After removing the redundancy, the optimal compression rate is shown to\nbe given by the von Neumann entropy of the reduced ensemble.",
    "arxiv_id": "quant-ph/0103128",
    "authors": [
      "Masato Koashi",
      "Nobuyuki Imoto"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.87.017902",
    "title": "Compressibility of Mixed-State Signals",
    "url": "https://arxiv.org/abs/quant-ph/0103128"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0e28f3fd-d0c6-431e-944a-d4242389a2f5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}