{
  "abstract": "We study a class of four-dimensional $\\mathcal{N}=2$ SU($N$) gauge theories with two massless hypermultiplets in the rank-two antisymmetric representation and $0\\leq N_f\\leq 4$ fundamental flavors. These theories are superconformal for $N_f=4$ and asymptotically free otherwise. Supersymmetric localization on the four-sphere applies in both cases and leads to matrix-model representations for a broad class of protected observables. Within this framework, we compute the free energy and the expectation value of the $\\frac{1}{2}$-BPS circular Wilson loop in the large-$N$ limit. For any $N_f$, we show that the infinite series of non-planar corrections at large 't Hooft coupling $λ$ can be resummed in terms of an effective coupling $\\widetildeλ$. In the non-conformal window ($0\\leq N_f<4$), this provides a first example in which localization leads to explicit results in the planar limit at strong 't Hooft coupling. In the superconformal case ($N_f=4$), the large-$N$ expansion in $\\widetildeλ$ suggests a refined AdS/CFT dictionary in which $\\widetildeλ$, rather than $λ$, plays the role of the bulk string coupling.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: JHEP 08 (2026) 203 JHEP 08 (2026) 203 JHEP 08 (2026) 203 JHEP 08 (2026) 203",
  "arxiv": "2605.16521",
  "author_total": 3,
  "authors": [
    {
      "name": "M. Billo"
    },
    {
      "name": "A. Lerda"
    },
    {
      "name": "A. Testa"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6bcjwndtbcrz5.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2605.16521",
  "fulltext_url": null,
  "id": "6bcjwndtbcrz5",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2605.16521",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "hep-th"
    ],
    [
      "openalex",
      "3106|Black Holes and Theoretical Physics"
    ]
  ],
  "openalex": "W7161725718",
  "pdf_url": "https://arxiv.org/pdf/2605.16521",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-23",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/6bcjwndtbcrz5.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:56Z",
      "native_id": "2605.16521",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2605.16521"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-th",
      "subfield": "high-energy"
    }
  ],
  "title": "Strong-coupling results in (non-)conformal $\\mathcal{N}=2$ theories with fundamental flavors",
  "title_text": "Strong-coupling results in (non-)conformal 𝒩=2 theories with fundamental flavors",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:56Z",
  "url": "https://research.draconitic.com/paper/6bcjwndtbcrz5",
  "venue": "arXiv",
  "versions": []
}