{
  "id": "1402.0145",
  "version": "v2",
  "published": "2014-02-02T03:01:56.000Z",
  "updated": "2014-10-23T14:34:04.000Z",
  "title": "Absolute measurement of thermal noise in a resonant short-range force experiment",
  "authors": [
    "H. Yan",
    "E. A. Housworth",
    "H. O. Meyer",
    "G. Visser",
    "E. Weisman",
    "J. C. Long"
  ],
  "comment": "28 pages, 10 figures, new title, additional references and discussion of force sensitivity, minor corrections",
  "journal": "Class. Quantum Grav. 31 205007 (2014)",
  "doi": "10.1088/0264-9381/31/20/205007",
  "categories": [
    "cond-mat.stat-mech",
    "physics.ins-det"
  ],
  "abstract": "Planar, double-torsional oscillators are especially suitable for short-range macroscopic force search experiments, since they can be operated at the limit of instrumental thermal noise. As a study of this limit, we report a measurement of the noise kinetic energy of a polycrystalline tungsten oscillator in thermal equilibrium at room temperature. The fluctuations of the oscillator in a high-Q torsional mode with a resonance frequency near 1 kHz are detected with capacitive transducers coupled to a sensitive differential amplifier. The electronic processing is calibrated by means of a known electrostatic force and input from a finite element model. The measured average kinetic energy is in agreement with the expected value of 1/2 kT.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-02-02T03:01:56.000Z",
      "title": "Thermal energy of a mechanical oscillator",
      "comment": "27 pages, 10 figures, submitted to Phys. Rev. E",
      "journal": null,
      "doi": null
    },
    {
      "version": "v2",
      "updated": "2014-10-23T14:34:04.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "thermal energy",
      "mechanical oscillator",
      "short-range macroscopic force search experiments",
      "measured average kinetic energy",
      "finite element model"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "IOP",
      "journal": "Classical and Quantum Gravity",
      "year": 2014,
      "month": "Oct",
      "volume": 31,
      "number": 20,
      "pages": 205007
    },
    "note": {
      "typesetting": "TeX",
      "pages": 28,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1279968,
      "adsabs": "2014CQGra..31t5007Y"
    }
  }
}