{
  "annotation_id": "13cae79e-38a6-475f-ac2a-54b476c9958f",
  "date_created": "2026-03-02T18:02:17.092000Z",
  "date_modified": "2026-03-02T18:02:17.092000Z",
  "file_hash": "ee94c008d8ec7c3da435219e6ec770735dcfe97336d66bcd81fc6677eb02bfee",
  "private": false,
  "record": {
    "abstract": "Within the framework of exact quantization of the electromagnetic field in\ndispersing and absorbing media the input-output problem of a high-$Q$ cavity is\nstudied, with special emphasis on the absorption losses in the coupling mirror.\nAs expected, the cavity modes are found to obey quantum Langevin equations,\nwhich could be also obtained from quantum noise theories, by appropriately\ncoupling the cavity modes to dissipative systems, including the effect of the\nmirror-assisted absorption losses. On the contrary, the operator input-output\nrelations obtained in this way would be incomplete in general, as the exact\ncalculation shows. On the basis of the operator input-output relations the\nproblem of extracting the quantum state of an initially excited cavity mode is\nstudied and input-output relations for the $s$-parameterized phase-space\nfunction are derived, with special emphasis on the relation between the Wigner\nfunctions of the quantum states of the outgoing field and the cavity field.",
    "arxiv_id": "quant-ph/0505117",
    "authors": [
      "M. Khanbekyan",
      "L. Kn\u00f6ll",
      "D. -G. Welsch",
      "A. A. Semenov",
      "W. Vogel"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.72.053813",
    "journal_ref": "Phys. Rev. A 72, 053813 (2005)",
    "title": "QED of lossy cavities: operator and quantum-state input-output relations",
    "url": "https://arxiv.org/abs/quant-ph/0505117"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "019c4132-023a-44f5-a8fc-b8df2e06aabf",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}