{
  "annotation_id": "0c2988aa-5797-4734-95a7-8cacdc5c7e14",
  "date_created": "2026-03-02T18:02:27.500000Z",
  "date_modified": "2026-03-02T18:02:27.500000Z",
  "file_hash": "9a8c80bf80aca4176e9edf48fcbd48991d3a0065a9cfcb90893b93ca732cd60d",
  "private": false,
  "record": {
    "abstract": "We present a theoretical analysis of the ability of atomic magnetometers to\nestimate a fluctuating magnetic field. Our analysis makes use of a Gaussian\nstate description of the atoms and the probing field, and it presents the\nestimator of the field and a measure of its uncertainty which coincides in the\nappropriate limit with the achievements for a static field. We show by\nsimulations that the estimator for the current value of the field\nsystematically lags behind the actual value of the field, and we suggest a more\ncomplete theory, where measurement results at any time are used to update and\nimprove both the estimate of the current value and the estimate of past values\nof the B-field.",
    "arxiv_id": "quant-ph/0605237",
    "authors": [
      "Vivi Petersen",
      "Klaus Molmer"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.74.043802",
    "title": "Estimation of fluctuating magnetic fields by an atomic magnetometer",
    "url": "https://arxiv.org/abs/quant-ph/0605237"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "88bd5fa6-c6d5-45d5-a73a-145853b594d3",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}