{
  "annotation_id": "df92f4a7-a70b-439a-a791-80a0d9227666",
  "date_created": "2026-03-02T18:02:06.645000Z",
  "date_modified": "2026-03-02T18:02:06.645000Z",
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  "private": false,
  "record": {
    "abstract": "We present a theory for the estimation of a classical magnetic field by an\natomic sample with a gaussian distribution of collective spin components. By\nincorporating the magnetic field and the probing laser field as quantum\nvariables with gaussian distributions on equal footing with the atoms, we\nobtain a very versatile description which is readily adapted to include probing\nwith squeezed light, dissipation and loss and additional measurement\ncapabilities on the atomic system.",
    "arxiv_id": "quant-ph/0402158",
    "authors": [
      "Klaus Molmer",
      "Lars Bojer Madsen"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.70.052102",
    "journal_ref": "Phys. Rev. A Vol. 70, 052102 (2004)",
    "title": "Estimation of a classical parameter with gaussian probes: magnetometry   with collective atomic spins",
    "url": "https://arxiv.org/abs/quant-ph/0402158"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "241cc3e7-306e-4c5b-8287-4c39c3c6623e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}