{
  "annotation_id": "0c97daa1-dbbe-49c9-950b-a20df1245380",
  "date_created": "2026-03-02T18:01:13.605000Z",
  "date_modified": "2026-03-02T18:01:13.605000Z",
  "file_hash": "6c276c829ac6f076370667988598f45bb37ee1d0b13b393195e38d8fee0544c0",
  "private": false,
  "record": {
    "abstract": "We describe a room-temperature alkali-metal atomic magnetometer for detection\nof small, high frequency magnetic fields. The magnetometer operates by\ndetecting optical rotation due to the precession of an aligned ground state in\nthe presence of a small oscillating magnetic field. The resonance frequency of\nthe magnetometer can be adjusted to any desired value by tuning the bias\nmagnetic field. We demonstrate a sensitivity of $100\\thinspace{\\rm\npG/\\sqrt{Hz}\\thinspace(RMS)}$ in a 3.5 cm diameter, paraffin coated cell. Based\non detection at the photon shot-noise limit, we project a sensitivity of\n$20\\thinspace{\\rm pG/\\sqrt{Hz}\\thinspace(RMS)}$.",
    "arxiv_id": "physics/0609196",
    "authors": [
      "M. P. Ledbetter",
      "V. M. Acosta",
      "S. M. Rochester",
      "D. Budker",
      "S. Pustelny",
      "V. V. Yashchuk"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevA.75.023405",
    "journal_ref": "Phys. Rev. A 75, 023405 (2007)",
    "title": "Detection of radio frequency magnetic fields using nonlinear   magneto-optical rotation",
    "url": "https://arxiv.org/abs/physics/0609196"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "89f4a7b8-a5df-4374-8352-ff824a85b5ae",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}