{
  "abstract": "$\\mathrm{UTe}_2$ has emerged as one of the most intensively studied strongly correlated materials in recent years owing to its unconventional superconductivity and the possible realization of a spin-triplet, topologically nontrivial pairing state. A central open issue concerns the nature of the $\\mathrm{U}\\,5f$ electrons and their participation in low-energy quasiparticle states. In this review, we summarize recent spectroscopic studies of $\\mathrm{UTe}_2$ using momentum-resolved angle-resolved photoemission spectroscopy (ARPES) and element- and configuration-sensitive X-ray probes, including X-ray absorption spectroscopy (XAS), X-ray absorption near-edge structure (XANES), X-ray magnetic circular dichroism (XMCD), resonant X-ray emission spectroscopy (RXES), and resonant inelastic X-ray scattering (RIXS). A key finding is the pronounced technique dependence of the inferred electronic structure. We synthesize the present spectroscopic picture by integrating these results with modern electronic-structure calculations such as density functional theory plus dynamical mean-field theory (DFT+DMFT). These findings support an intermediate-valence ground state with significant admixture of $5f^2$ and $5f^3$ configurations in $\\mathrm{UTe}_2$, and they delineate key experimental and theoretical benchmarks needed to connect the normal-state electronic structure to the superconducting mechanism.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Electronic Structure 8, 043001 (2026)",
  "arxiv": "2609.36706",
  "author_total": 1,
  "authors": [
    {
      "name": "Shin-ichi Fujimori"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/dfgk96hdx1e5e.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.36706",
  "fulltext_url": null,
  "id": "dfgk96hdx1e5e",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.36706",
  "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",
      "cond-mat.str-el"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2609.36706",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-06",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/dfgk96hdx1e5e.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:22Z",
      "native_id": "2609.36706",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.36706"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.str-el",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Probing the electronic structure of $\\mathrm{UTe}_2$ with ARPES and high-energy spectroscopy",
  "title_text": "Probing the electronic structure of UTe_2 with ARPES and high-energy spectroscopy",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:22Z",
  "url": "https://research.draconitic.com/paper/dfgk96hdx1e5e",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1088/2516-1075/ae97cc",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}