{
  "annotation_id": "920f83a9-af36-4455-a44e-fa1f582b9375",
  "date_created": "2026-03-02T18:02:27.055000Z",
  "date_modified": "2026-03-02T18:02:27.055000Z",
  "file_hash": "8c9e3c044af96b6bb52a76bfc217f599e930c0371c9e6bc0221655c731a503d2",
  "private": false,
  "record": {
    "abstract": "Thermodynamic entropy is not an entirely satisfactory measure of information\nof a quantum state. This entropy for an unknown pure state is zero, although\nrepeated measurements on copies of such a pure state do communicate\ninformation. In view of this, we propose a new measure for the informational\nentropy of a quantum state that includes information in the pure states and the\nthermodynamic entropy. The origin of information is explained in terms of an\ninterplay between unitary and non-unitary evolution. Such complementarity is\nalso at the basis of the so-called interaction-free measurement.",
    "arxiv_id": "quant-ph/0605096",
    "authors": [
      "Subhash Kak"
    ],
    "categories": [
      "quant-ph",
      "cs.IT",
      "math.IT"
    ],
    "doi": "10.1007/s10773-006-9245-6",
    "journal_ref": "International Journal of Theoretical Physics, vol. 46, pp.\n  860-876, 2007.",
    "title": "Quantum Information and Entropy",
    "url": "https://arxiv.org/abs/quant-ph/0605096"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5829f927-100f-4528-a6ce-e1f0813d26f0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}