{
  "abstract": "This course on two-dimensional quantum gases, prepared for the S{ã}o Paulo ICTP-SAIFR IVth School on Light and Cold Atoms, is organized into three lectures. The first introductory lecture addresses Bose-Einstein condensation in an ideal gas, the effect of interactions in the weakly interacting limit, Gross-Pitaevskii equation and its hydrodynamic formulation, as well as superfluidity. The second lecture is devoted to the main features of two-dimensional quantum gases: importance of the interactions, enhanced phase fluctuations and the emergence of a quasi long-range order, superfluidity through the Berezinskii-Kosterlitz-Thouless mechanism, scaling symmetry. The third lecture has taken the form of a seminar on fast rotating quasi two-dimensional Bose gases and thermal melting of the vortex lattice. The slides accompanying these notes can be found on the school website: https://www.ictp-saifr.org/slca2025/.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Sao Paulo ICTP-SAIFR IVth School on Light and Cold Atoms, Oct 2025, S{ã}o Paulo, Brazil",
  "arxiv": "2609.17097",
  "author_total": 1,
  "authors": [
    {
      "name": "Hélène Perrin"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/d1htvj6a5n1p1.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.17097",
  "fulltext_url": null,
  "id": "d1htvj6a5n1p1",
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  "landing_url": "https://arxiv.org/abs/2609.17097",
  "language": null,
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  "licence_label": "arXiv licence",
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  "metadata_licence": "CC0-1.0",
  "native_subjects": [
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      "cond-mat.quant-gas"
    ],
    [
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      "physics.atom-ph"
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    [
      "openalex",
      "3107|Cold Atom Physics and Bose-Einstein Condensates"
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  "openalex": "W7213412323",
  "pdf_url": "https://arxiv.org/pdf/2609.17097",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-15",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/d1htvj6a5n1p1.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:41Z",
      "native_id": "2609.17097",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.17097"
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  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.quant-gas",
      "subfield": "amo"
    },
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.quant-gas",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
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  ],
  "title": "Course on two-dimensional quantum gases",
  "title_text": "Course on two-dimensional quantum gases",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:41Z",
  "url": "https://research.draconitic.com/paper/d1htvj6a5n1p1",
  "venue": "arXiv",
  "versions": []
}