{
  "annotation_id": "f88a9492-164b-4885-b059-98c4c2d02bfc",
  "date_created": "2026-03-02T18:01:17.240000Z",
  "date_modified": "2026-03-02T18:01:17.240000Z",
  "file_hash": "aafabb86e7ef66a7eb256c8f1dbf78028e47e792cfc5c6260d933f7ab1482493",
  "private": false,
  "record": {
    "abstract": "Single-impulse three-dimensional magnetic focusing of vertically launched\ncold atoms has been observed. Four different configurations of the lens were\nused to vary the relative radial and axial focusing properties. Compact focused\nclouds of 85Rb were seen for all four configurations. It is shown that an\natom-optical ray matrix approach for describing the lensing action is\ninsufficient. Numerical simulation using a full approximation to the lens\u0027s\nmagnetic field shows very good agreement with the radial focusing properties of\nthe lens. However, the axial (vertical direction) focusing properties are less\nwell described and the reasons for this are discussed.",
    "arxiv_id": "physics/0701272",
    "authors": [
      "David A. Smith",
      "Aidan S. Arnold",
      "Matthew J. Pritchard",
      "Ifan G. Hughes"
    ],
    "categories": [
      "physics.atom-ph",
      "physics.optics"
    ],
    "doi": "10.1088/0953-4075/41/12/125302",
    "journal_ref": "J. Phys. B 41, 125302 (2008)",
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "title": "Experimental single-impulse magnetic focusing of launched cold atoms",
    "url": "https://arxiv.org/abs/physics/0701272"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4931a76c-2913-4f89-9aab-e5b9226055f5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}