{
  "annotation_id": "94fa7751-90a0-435a-8c68-c4a0cd9abd4f",
  "date_created": "2026-03-02T18:01:56.684000Z",
  "date_modified": "2026-03-02T18:01:56.684000Z",
  "file_hash": "fec0b18d1b9cb844f2195c0cd7cb87a96a801dca9269ccd852bfd2cd4d79cf16",
  "private": false,
  "record": {
    "abstract": "In this paper we propose a general method to quantify how \"quantum\" a set of\nquantum states is. The idea is to gauge the quantumness of the set by the\nworst-case difficulty of transmitting the states through a purely classical\ncommunication channel. Potential applications of this notion arise in quantum\ncryptography, where one might like to use an alphabet of states that promises\nto be the most sensitive to quantum eavesdropping, and in laboratory\ndemonstrations of quantum teleportation, where it is necessary to check that\nquantum entanglement has actually been used in the protocol.",
    "arxiv_id": "quant-ph/0302092",
    "authors": [
      "Christopher A. Fuchs",
      "Masahide Sasaki"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Squeezing Quantum Information through a Classical Channel: Measuring the   \"Quantumness\" of a Set of Quantum States",
    "url": "https://arxiv.org/abs/quant-ph/0302092"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c3bfc1ea-17a7-4660-b5b1-62c241e03c54",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}