{
  "abstract": "Simulating real-time dynamics in lattice gauge theories (LGTs) is severely constrained by the circuit depth overhead of standard fermion-to-qubit mappings, which scale linearly or quadratically with system size. To overcome this depth-scaling bottleneck, we introduce the Hardware-Aware Lattice Optimization (HALO) compiler, an architecture executing global time-evolution in an immutable $\\mathcal{O}(1)$ circuit depth per Trotter step. By natively mapping composite gauge links to hardware topologies, HALO achieves a $91.36\\%$ reduction in entangling gate overhead compared to unoptimized Jordan-Wigner baselines, compressing a 16-qubit global step to 56 CNOTs and bypassing extensive $\\mathcal{O}(N)$ scaling limits. We validate this compiler on IBM superconducting transmon processors by simulating the mesoscopic Quantum Link Model (QLM) truncation of the Schwinger model. Coupling $\\mathcal{O}(1)$ compilation with Zero-Noise Extrapolation (ZNE), we track localized string rupture, extracting the dynamical crossover of pair creation at $t \\approx 0.790$ with an $18.3 \\pm 2.2\\%$ rupture probability. Furthermore, we map the dynamical phase diagram, identifying the confinement phase boundary at $g_c = 1.0$. Finally, we introduce a scalable 2D unit-cell blueprint, paving a direct pathway toward the fault-tolerant simulation of two-dimensional Quantum Chromodynamics (QCD).",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.19243",
  "author_total": 1,
  "authors": [
    {
      "name": "Abhiroop Gohar"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/e576142mqcp0t.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.19243",
  "fulltext_url": null,
  "id": "e576142mqcp0t",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.19243",
  "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-lat"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "1702|Quantum Computing Algorithms and Architecture"
    ]
  ],
  "openalex": "W7203891970",
  "pdf_url": "https://arxiv.org/pdf/2608.19243",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-10",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/e576142mqcp0t.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:20:26Z",
      "native_id": "2608.19243",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.19243"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:hep-lat",
      "subfield": "high-energy"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "The HALO Engine: $\\mathcal{O}(1)$-Step Compilation and Localized String Rupture for Lattice Gauge Theories on Quantum Hardware",
  "title_text": "The HALO Engine: 𝒪(1)-Step Compilation and Localized String Rupture for Lattice Gauge Theories on Quantum Hardware",
  "type": "preprint",
  "updated_at": "2026-10-30T12:20:26Z",
  "url": "https://research.draconitic.com/paper/e576142mqcp0t",
  "venue": "arXiv",
  "versions": []
}