{
  "annotation_id": "e37cae4b-a682-4846-84f5-a6003222b380",
  "date_created": "2026-03-02T18:02:45.024000Z",
  "date_modified": "2026-03-02T18:02:45.024000Z",
  "file_hash": "4f83a3f718ad655d169730638f3f29e6e40ff648f8b0f5cf0a006d084c4d669f",
  "private": false,
  "record": {
    "abstract": "We perform a quantum theoretical calculation of the noise power spectrum for\na phase measurement of the light output from a coherently driven optical cavity\nwith a freely moving rear mirror. We examine how the noise resulting from the\nquantum back action appears among the various contributions from other noise\nsources. We do not assume an ideal (homodyne) phase measurement, but rather\nconsider phase modulation detection, which we show has a different shot noise\nlevel. We also take into account the effects of thermal damping of the mirror,\nlosses within the cavity, and classical laser noise. We relate our theoretical\nresults to experimental parameters, so as to make direct comparisons with\ncurrent experiments simple. We also show that in this situation, the standard\nBrownian motion master equation is inadequate for describing the thermal\ndamping of the mirror, as it produces a spurious term in the steady-state phase\nfluctuation spectrum. The corrected Brownian motion master equation [L. Diosi,\nEurophys. Lett. {\\bf 22}, 1 (1993)] rectifies this inadequacy.",
    "arxiv_id": "quant-ph/9902040",
    "authors": [
      "K. Jacobs",
      "I. Tittonen",
      "H. M. Wiseman",
      "S. Schiller"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.60.538",
    "journal_ref": "Phys.Rev. A60 (1999) 538",
    "title": "Quantum noise in the position measurement of a cavity mirror undergoing   Brownian motion",
    "url": "https://arxiv.org/abs/quant-ph/9902040"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d95f75b0-11dd-4e1f-95e5-35b7be80c2a2",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}