{
  "annotation_id": "e7e48e78-1e88-49e8-8fee-a3c823bef59b",
  "date_created": "2026-03-02T18:01:58.925000Z",
  "date_modified": "2026-03-02T18:01:58.925000Z",
  "file_hash": "f8feefc03359b50fa1be8812e2eade7620c9b79e3d304f3b16acfa0f20529ae7",
  "private": false,
  "record": {
    "abstract": "The linear Faraday effect is used to implement a continuous measurement of\nthe spin of a sample of laser cooled atoms trapped in an optical lattice. One\nof the optical lattice beams serves also as a probe beam, thereby allowing one\nto monitor the atomic dynamics in real time and with minimal perturbation. A\nsimple theory is developed to predict the measurement sensitivity and\nassociated cost in terms of decoherence caused by the scattering of probe\nphotons. Calculated signal-to-noise ratios in measurements of Larmor precession\nare found to agree with experimental data for a wide range of lattice intensity\nand detuning. Finally, quantum backaction is estimated by comparing the\nmeasurement sensitivity to spin projection noise, and shown to be insignificant\nin the current experiment. A continuous quantum measurement based on Faraday\nspectroscopy in optical lattices may open up new possibilities for the study of\nquantum feedback and classically chaotic quantum systems.",
    "arxiv_id": "quant-ph/0304163",
    "authors": [
      "Greg Smith",
      "Souma Chaudhury",
      "Poul S. Jessen"
    ],
    "categories": [
      "quant-ph",
      "physics.atom-ph"
    ],
    "doi": "10.1088/1464-4266/5/4/301",
    "title": "Faraday spectroscopy in an optical lattice: a continuous probe of atom   dynamics",
    "url": "https://arxiv.org/abs/quant-ph/0304163"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "48ba6715-3393-49ac-9ce4-b0fc59acad99",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}