{
  "annotation_id": "e2e3f36a-2f02-4a82-b07f-334076841b98",
  "date_created": "2026-03-02T18:00:43.259000Z",
  "date_modified": "2026-03-02T18:00:43.259000Z",
  "file_hash": "708a3987e6be794a1351623e3676c3288b4f747de232dea6cc94975bcb73decd",
  "private": false,
  "record": {
    "abstract": "A new possibility of laser cooling of alkaline-earth-metal and Ytterbium\natoms using a two-photon transition is analyzed. We consider a $^{1}S_{0}$ -\n$^{1}S_{0}$ transition, with excitation in near resonance with the $^{1}P_{1}$\nlevel. This greatly increases the two-photon transition rate, allowing an\neffective transfer of momentum. The experimental implementation of this\ntechnique is discussed and we show that for Calcium, for example, two-photon\ncooling can be used to achieve a Doppler limit of 123 microKelvin. The\nefficiency of this cooling scheme and the main loss mechanisms are analyzed.",
    "arxiv_id": "physics/0303042",
    "authors": [
      "Wictor C. Magno",
      "Reinaldo L. Cavasso Filho",
      "Flavio C. Cruz"
    ],
    "categories": [
      "physics.atom-ph",
      "physics.optics"
    ],
    "doi": "10.1103/PhysRevA.67.043407",
    "title": "Two-Photon Doppler cooling of alkaline-earth-metal and ytterbium atoms",
    "url": "https://arxiv.org/abs/physics/0303042"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b0606707-a333-4620-bd11-9ad041720416",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}