{
  "abstract": "Symmetric mass generation is the interaction-induced opening of a fermion gap without spontaneous symmetry breaking. The anomaly-free 3-4-5-0 model of Wang and Wen provides a minimal one-dimensional setting for this phenomenon, but a direct lattice realization faces two obstacles: fermion doubling for local chiral discretizations and perturbative irrelevance of the six-fermion gapping interaction. We address both obstacles. First, we formulate the model on a strictly one-dimensional tangent-fermion lattice, where a nonlocal hopping produces a single chiral branch without a mirror partner while retaining an efficient tensor-network representation. Second, we add a Hubbard-type density-density interaction (Luttinger parameter $K$) that reduces the scaling dimension of the 3-4-5-0 interaction from $5$ to $5K$, making it relevant for $K<2/5$. Density-matrix renormalization group calculations show the opening of an excitation gap in this regime without the appearance of a degenerate ground state, the hallmark of symmetric mass generation.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Phys. Rev. Research 8, 043009 (2026)",
  "arxiv": "2606.24713",
  "author_total": 4,
  "authors": [
    {
      "name": "V. A. Zakharov"
    },
    {
      "name": "Atsushi Ueda"
    },
    {
      "name": "Frank Verstraete"
    },
    {
      "name": "C. W. J. Beenakker"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7nt6kdgsskpfs.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2606.24713",
  "fulltext_url": null,
  "id": "7nt6kdgsskpfs",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2606.24713",
  "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",
      "cond-mat.str-el"
    ],
    [
      "arxiv",
      "hep-th"
    ],
    [
      "arxiv",
      "quant-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2606.24713",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/7nt6kdgsskpfs.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:22Z",
      "native_id": "2606.24713",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2606.24713"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.str-el",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:hep-th",
      "subfield": "high-energy"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Symmetric mass generation of interacting chiral fermions on a one-dimensional lattice without fermion doubling",
  "title_text": "Symmetric mass generation of interacting chiral fermions on a one-dimensional lattice without fermion doubling",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:22Z",
  "url": "https://research.draconitic.com/paper/7nt6kdgsskpfs",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1103/2v9h-25qs",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}