{
  "abstract": "As quantum devices become accelerators within classical HPC deployments, the efficiency of the classical partition becomes critical. Workloads such as Hamiltonian manipulation, observable backpropagation, and Pauli-based compilation reduce to bulk arithmetic on Pauli strings and sums. We present HPC strategies for this arithmetic, demonstrated in PauLIB, a header-only C++20 library: a bit-packed binary symplectic representation reducing Pauli multiplication to a bitwise XOR and population count; a sorted, struct-of-arrays layout replacing hash maps and exposing contiguous word arrays to SIMD units and GPU warps; and deterministic OpenMP parallelism with race-free output partitioning. These strategies deliver orders-of-magnitude higher throughput and smaller memory footprint than Qiskit and PauliEngine, plus a speedup from a CUDA outer-product kernel on an H100. Two case studies, g-sim and truncated Pauli propagation, inherit these gains and scale unchanged from a desktop Arm CPU to a 72-core HPC Arm server. PauLIB is open source with C++ and Python interfaces.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2605.25974",
  "author_total": 1,
  "authors": [
    {
      "name": "Florian Krötz"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/arzydydvzt88b.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2605.25974",
  "fulltext_url": null,
  "id": "arzydydvzt88b",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2605.25974",
  "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",
      "cs.ET"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "1702|Quantum Computing Algorithms and Architecture"
    ]
  ],
  "openalex": "W7162450239",
  "pdf_url": "https://arxiv.org/pdf/2605.25974",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-26",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/arzydydvzt88b.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:35Z",
      "native_id": "2605.25974",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2605.25974"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "PauLIB: HPC Strategies for Pauli-Arithmetic-Based Quantum Computing Workloads and Simulations",
  "title_text": "PauLIB: HPC Strategies for Pauli-Arithmetic-Based Quantum Computing Workloads and Simulations",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:35Z",
  "url": "https://research.draconitic.com/paper/arzydydvzt88b",
  "venue": "arXiv",
  "versions": []
}