{
  "annotation_id": "5b7948cc-99f2-47a3-8c16-d734b058aae0",
  "date_created": "2026-03-02T18:01:59.487000Z",
  "date_modified": "2026-03-02T18:01:59.487000Z",
  "file_hash": "11cc588371e4376c4ebded7884d4750c85eab40ed4e2d6a502e274e0e9cb0c5b",
  "private": false,
  "record": {
    "abstract": "The first precise measurement of the Casimir force between dissimilar metals\nis reported. The attractive force, between a Cu layer evaporated on a\nmicroelectromechanical torsional oscillator, and an Au layer deposited on an\nAl$_2$O$_3$ sphere, was measured dynamically with a noise level of 6\nfN/$\\sqrt{\\rm{Hz}}$. Measurements were performed for separations in the 0.2-2\n$\\mu$m range. The results agree to better than 1% in the 0.2-0.5 $\\mu$m range\nwith a theoretical model that takes into account the finite conductivity and\nroughness of the two metals. The observed discrepancies, which are much larger\nthan the experimental precision, can be attributed to a lack of a complete\ncharacterization of the optical properties of the specific samples used in the\nexperiment.",
    "arxiv_id": "quant-ph/0306136",
    "authors": [
      "R. S. Decca",
      "D. L\u00f3pez",
      "E. Fischbach",
      "D. E. Krause"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.91.050402",
    "title": "Measurement of the Casimir force between dissimilar metals",
    "url": "https://arxiv.org/abs/quant-ph/0306136"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2d5e5c77-a8ca-4f95-a8a8-86aa1d22aefe",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}