{
  "annotation_id": "4aa180bd-fa91-41a5-881f-785c4b860acc",
  "date_created": "2026-03-02T18:01:45.060000Z",
  "date_modified": "2026-03-02T18:01:45.060000Z",
  "file_hash": "332d75979e255cc34b6038238fd6351965f431c0ce5de8da5d07591f72a29744",
  "private": false,
  "record": {
    "abstract": "The Wehrl information entropy and its phase density, the so-called Wehrl\nphase distribution, are applied to describe Schr\\\"odinger cat and cat-like\n(kitten) states. The advantages of the Wehrl phase distribution over the Wehrl\nentropy in a description of the superposition principle are presented. The\nentropic measures are compared with a conventional phase distribution from the\nHusimi Q-function. Compact-form formulae for the entropic measures are found\nfor superpositions of well-separated states. Examples of Schr\\\"odinger cats\n(including even, odd and Yurke-Stoler coherent states), as well as the cat-like\nstates generated in Kerr medium are analyzed in detail. It is shown that, in\ncontrast to the Wehrl entropy, the Wehrl phase distribution properly\ndistinguishes between different superpositions of unequally-weighted states in\nrespect to their number and phase-space configuration.",
    "arxiv_id": "quant-ph/0107107",
    "authors": [
      "A. Miranowicz",
      "J. Bajer",
      "M. R. B. Wahiddin",
      "N. Imoto"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/0305-4470/34/18/315",
    "journal_ref": "J. Phys. A 34, 3887-3896 (2001)",
    "title": "Wehrl information entropy and phase distributions of Schrodinger cat and   cat-like states",
    "url": "https://arxiv.org/abs/quant-ph/0107107"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7307fdda-d4c1-44a2-be78-d4c22ce2a868",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}