{
  "id": "quant-ph/0211016",
  "version": "v2",
  "published": "2002-11-05T10:39:02.000Z",
  "updated": "2003-01-23T16:08:54.000Z",
  "title": "Improvement of Laser Cooling of Ions in a Penning Trap by use of the Axialisation Technique",
  "authors": [
    "H. F. Powell",
    "S. R. de Echaniz",
    "E. S. Phillips",
    "D. M. Segal",
    "R. C. Thompson"
  ],
  "comment": "10 pages, 6 figures, proceedings of the TCPFI 2002 conference, to be published in J. Phys. B",
  "categories": [
    "quant-ph"
  ],
  "abstract": "We report a study of the axialisation and laser cooling of single ions and small clouds of ions in a Penning trap. A weak radiofrequency signal applied to a segmented ring electrode couples the magnetron motion to the cyclotron motion, which results in improved laser cooling of the magnetron motion. This allows us to approach the trapping conditions of a Paul trap, but without any micromotion. Using an ICCD camera we show that the motion of a single ion can be confined to dimensions of the order of 10 $\\mu$m. We have measured increased magnetron cooling rates using an rf-photon correlation technique. For certain laser cooling conditions, the magnetron motion of the centre of mass of the cloud grows and stabilises at a large value. This results in the ions orbiting the centre of the trap together in a small cloud, as confirmed by photon-photon correlation measurements.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2003-01-23T16:08:54.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "laser cooling",
      "penning trap",
      "axialisation technique",
      "increased magnetron cooling rates",
      "magnetron motion"
    ],
    "tags": [
      "conference paper"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2002quant.ph.11016P"
    }
  }
}