{
  "annotation_id": "8fab5c4f-b64e-44c7-8cde-669aa422a864",
  "date_created": "2026-03-02T18:01:49.442000Z",
  "date_modified": "2026-03-02T18:01:49.442000Z",
  "file_hash": "b2b907ae2bdb2736e6cdeffaf93cacd0fe565714bc40df013ad36ddd8c0ef16d",
  "private": false,
  "record": {
    "abstract": "We propose a quantum feedback scheme for producing deterministically\nreproducible spin squeezing. The results of a continuous nondemolition atom\nnumber measurement are fed back to control the quantum state of the sample. For\nlarge samples and strong cavity coupling, the squeezing parameter minimum\nscales inversely with atom number, approaching the Heisenberg limit.\nFurthermore, ceasing the measurement and feedback when this minimum has been\nreached will leave the sample in the maximally squeezed spin state.",
    "arxiv_id": "quant-ph/0202028",
    "authors": [
      "L. K. Thomsen",
      "S. Mancini",
      "H. M. Wiseman"
    ],
    "categories": [
      "quant-ph",
      "cond-mat"
    ],
    "doi": "10.1103/PhysRevA.65.061801",
    "journal_ref": "PRA 65, 061801(R) (2001)",
    "title": "Spin squeezing via quantum feedback",
    "url": "https://arxiv.org/abs/quant-ph/0202028"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f49d4764-9c99-401d-9d48-2d7588cc5f07",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}