{
  "annotation_id": "a857af8b-0dde-412e-ac9b-8b30da4e468b",
  "date_created": "2026-03-02T18:02:45.177000Z",
  "date_modified": "2026-03-02T18:02:45.177000Z",
  "file_hash": "aec12159d55b96ca95a8742df67857776a26c0240ee2755b302c491d8bdb83c7",
  "private": false,
  "record": {
    "abstract": "In this talk I shall describe an extension of the quantum-vacuum approach to\nsonoluminescence proposed several years ago by J.Schwinger. We shall first\nconsider a model calculation based on Bogolubov coefficients relating the QED\nvacuum in the presence of an expanded bubble to that in the presence of a\ncollapsed bubble. In this way we shall derive an estimate for the spectrum and\ntotal energy emitted. This latter will be shown to be proportional to the\nvolume of space over which the refractive index changes, as Schwinger\npredicted. After this preliminary check we shall deal with the physical\nconstraints that any viable dynamical model for SL has to satisfy in order to\nfit the experimental data. We shall emphasize the importance of the timescale\nof the change in refractive index. This discussion will led us to propose a\nsomewhat different version of dynamical Casimir effect in which the change in\nvolume of the bubble is no longer the only source for the change in the\nrefractive index.",
    "arxiv_id": "quant-ph/9904008",
    "authors": [
      "S. Liberati",
      "Matt Visser",
      "F. Belgiorno",
      "D. W. Sciama"
    ],
    "categories": [
      "quant-ph",
      "hep-ph",
      "hep-th"
    ],
    "title": "Sonoluminescence and the QED vacuum",
    "url": "https://arxiv.org/abs/quant-ph/9904008"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "810c597d-d274-4269-a5be-7275313e0d9d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}