{
  "abstract": "We introduce the order-separated Grassmann higher-order tensor renormalization group (OS-GHOTRG) method for QCD with staggered quarks in the strong-coupling expansion. The method allows us to determine the expansion coefficients of the partition function, from which we can obtain the strong-coupling expansions of thermodynamical observables. We use the method in two dimensions to compute the free energy, the particle-number density, and the chiral condensate as a function of the chemical potential up to third order in the inverse coupling β. Although near the phase transition the expansion is only a good approximation to the full theory at small β, we show that the range of applicability can be greatly extended by fits to judiciously chosen transition functions.",
  "abstract_shown": true,
  "affiliations": [
    "University of Regensburg"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 4,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Thomas Samberger",
      "orcid": "0009-0002-0445-386X"
    },
    {
      "affs": [
        0
      ],
      "name": "Jacques Bloch",
      "orcid": "0000-0002-8443-4804"
    },
    {
      "name": "Robert Lohmayer",
      "orcid": "0000-0001-6207-4695"
    },
    {
      "affs": [
        0
      ],
      "name": "Tilo Wettig",
      "orcid": "0000-0001-6732-9204"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/f95e4c6fnzmx3.bib",
  "cited_by": 0,
  "doi": "10.1007/jhep11(2026)050",
  "fulltext_url": null,
  "id": "f95e4c6fnzmx3",
  "issns": [
    "1029-8479"
  ],
  "landing_url": "https://link.springer.com/article/10.1007/JHEP11(2026)050",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0",
  "metadata_licence": null,
  "native_subjects": [
    [
      "feed-journal",
      "physics/high-energy"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://link.springer.com/content/pdf/10.1007/JHEP11(2026)050.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-05",
  "publisher": "Springer Science and Business Media LLC",
  "ris": "https://research.draconitic.com/paper/f95e4c6fnzmx3.ris",
  "sources": [
    {
      "first_seen": "2026-11-05T18:20:56Z",
      "native_id": "10.1007/jhep11(2026)050",
      "source": "feed-springer",
      "url": "https://link.springer.com/article/10.1007/JHEP11(2026)050"
    },
    {
      "first_seen": "2026-11-06T00:20:57Z",
      "native_id": "10.1007/jhep11(2026)050",
      "source": "crossref",
      "url": "https://link.springer.com/article/10.1007/JHEP11(2026)050"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "feed-journal:physics/high-energy",
      "subfield": "high-energy"
    }
  ],
  "title": "Order-separated tensor-network method for QCD in the strong-coupling expansion",
  "title_text": "Order-separated tensor-network method for QCD in the strong-coupling expansion",
  "type": "peer-reviewed",
  "updated_at": "2026-11-07T00:20:55Z",
  "url": "https://research.draconitic.com/paper/f95e4c6fnzmx3",
  "venue": "Journal of High Energy Physics",
  "versions": []
}