{
  "abstract": "Cooling complex molecular ions to millikelvin temperatures remains a major challenge because their intricate internal structures prevent laser cooling. Here, we propose to use an ultracold gas of Cd atoms to efficiently cool C$_{60}^+$ ions to average kinetic energies of approximately 20 mK, following an initial precooling stage with He buffer gas. Our approach is based on full molecular dynamics simulations using accurate ion-atom interaction potentials derived from high-level electronic structure methods. Furthermore, using a Monte Carlo approach, we predict the formation of C$_{60}^+$ Coulomb crystals supported solely by collisions with the buffer gas. The probability of reaching these cold states shows a pronounced dependence on the number of trapped ions, revealing the competition between neutral-atom cooling and many-ion dynamics in radio-frequency traps.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.05815",
  "author_total": 4,
  "authors": [
    {
      "name": "Saajid Chowdhury"
    },
    {
      "name": "Zhongqi Liang"
    },
    {
      "name": "Yu Wang"
    },
    {
      "name": "Jesús Pérez-Ríos"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8a78znrz9d14p.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.05815",
  "fulltext_url": null,
  "id": "8a78znrz9d14p",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.05815",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.atom-ph"
    ],
    [
      "arxiv",
      "physics.chem-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.05815",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-04",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/8a78znrz9d14p.ris",
  "sources": [
    {
      "first_seen": "2026-11-05T15:20:56Z",
      "native_id": "2611.05815",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.05815"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "arxiv:physics.chem-ph",
      "subfield": "physical"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.atom-ph",
      "subfield": "amo"
    }
  ],
  "title": "Sympathetic Cooling of Ionic Fullerenes with Ultracold Atoms to Millikelvin Temperatures",
  "title_text": "Sympathetic Cooling of Ionic Fullerenes with Ultracold Atoms to Millikelvin Temperatures",
  "type": "preprint",
  "updated_at": "2026-11-09T00:20:19Z",
  "url": "https://research.draconitic.com/paper/8a78znrz9d14p",
  "venue": "arXiv",
  "versions": []
}