{
  "abstract": "We present an advancement for solving the Discretized Light-Cone Quantization (DLCQ) Hamiltonian for mass spectra in 2D $ϕ^4$ theory that incorporates perturbative zero-mode contributions. We demonstrate that this correction accelerates numerical convergence of the mass eigenstates with increasing resolution and yields a critical coupling of comparable accuracy with a substantial reduction in computational costs. Specifically, with more than one order of magnitude reduction in basis space dimensionality we achieve an extrapolated critical coupling of $23.10 \\pm 0.25$ compared with $23.53 \\pm 0.26$ in the larger basis but without zero-mode correction. We employ Gaussian Process Regression for extrapolation to the continuum limit. The approach we present here is prospective for studies of higher-dimensional gauge theories.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Phys. Lett. B 882 (2026) 140992",
  "arxiv": "2608.02972",
  "author_total": 3,
  "authors": [
    {
      "name": "Shreeram Jawadekar"
    },
    {
      "name": "Mamoon A. Sharaf"
    },
    {
      "name": "James P. Vary"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/59sct7ear1d9c.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.02972",
  "fulltext_url": null,
  "id": "59sct7ear1d9c",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.02972",
  "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",
      "hep-ph"
    ],
    [
      "arxiv",
      "hep-th"
    ],
    [
      "arxiv",
      "nucl-th"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2608.02972",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-29",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/59sct7ear1d9c.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:25:31Z",
      "native_id": "2608.02972",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.02972"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    },
    {
      "field": "physics",
      "origin": "arxiv:nucl-th",
      "subfield": "nuclear"
    }
  ],
  "title": "Critical coupling with zero-mode corrections in discretized light-cone quantized $ϕ^4$ theory",
  "title_text": "Critical coupling with zero-mode corrections in discretized light-cone quantized ϕ^4 theory",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:31Z",
  "url": "https://research.draconitic.com/paper/59sct7ear1d9c",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1016/j.physletb.2026.140992",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}