{
  "annotation_id": "e77b38a4-3a37-4d49-be80-3ca55c22f5de",
  "date_created": "2026-03-02T18:01:11.082000Z",
  "date_modified": "2026-03-02T18:01:11.082000Z",
  "file_hash": "27fec940cd109914499f4c6b220a499bf7717a6c3285500229f4b5c6fa389ea2",
  "private": false,
  "record": {
    "abstract": "We present time-resolved spectroscopic measurements of Rydberg-Rydberg\ninteractions in an ultracold gas, revealing the pair dynamics induced by\nlong-range van der Waals interactions between the atoms. By detuning the\nexcitation laser, a specific pair distribution is prepared. Penning ionization\non a microsecond timescale serves as a probe for the pair dynamics under the\ninfluence of the attractive long-range forces. Comparison with a Monte Carlo\nmodel not only explains all spectroscopic features but also gives quantitative\ninformation about the interaction potentials. The results imply that the\ninteraction-induced ionization rate can be influenced by the excitation laser.\nSurprisingly, interaction-induced ionization is also observed for Rydberg\nstates with purely repulsive interactions.",
    "arxiv_id": "physics/0607041",
    "authors": [
      "T. Amthor",
      "M. Reetz-Lamour",
      "S. Westermann",
      "J. Denskat",
      "M. Weidem\u00fcller"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevLett.98.023004",
    "title": "Mechanical effect of van der Waals interactions observed in real time in   an ultracold Rydberg gas",
    "url": "https://arxiv.org/abs/physics/0607041"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e7c723c1-71ba-4741-8355-94eeaa817c88",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}