{
  "abstract": "2-local qubit Hamiltonian simulation, a fundamental task in quantum computing, is widely applied in various applications. This paper presents QBX, the first quantum compiler designed for 2-local qubit Hamiltonian simulation on quantum chiplet architectures. Existing general-purpose quantum compilers for chiplet architectures target quantum programs at the gate level and miss optimizations requiring high-level semantics of Hamiltonian simulation. Conversely, existing domain-specific compilers for Hamiltonian simulation are designed for monolithic architectures, and their limited scalability and inability to adapt to the heterogeneity of chiplet architectures lead to sub-optimal circuit outputs. QBX implements a scalable hierarchical approach to reduce both the amount and distance of cross-chiplet communications. It integrates the highway mechanism, a chiplet-oriented solution for efficient long-range qubit communication, to diminish cross-chiplet interaction costs. Furthermore, QBX efficiently aggregates 2-local Pauli strings into multi-target controlled gates, harnessing highways for deep optimization. Our evaluations show that QBX markedly outperforms both general-purpose and domain-specific compilers in circuit depth and operation count, while scaling to much larger 2-local Hamiltonian simulations.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.33997",
  "author_total": 3,
  "authors": [
    {
      "name": "Zikun Li"
    },
    {
      "name": "Zhuoming Chen"
    },
    {
      "name": "Zhihao Jia"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/ebyahsfvs3jbc.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.33997",
  "fulltext_url": null,
  "id": "ebyahsfvs3jbc",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.33997",
  "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",
      "cs.AR"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "1702|Quantum Computing Algorithms and Architecture"
    ]
  ],
  "openalex": "W7214802648",
  "pdf_url": "https://arxiv.org/pdf/2609.33997",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-27",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/ebyahsfvs3jbc.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:25:12Z",
      "native_id": "2609.33997",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.33997"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "QBX: A Compiler for 2-local Qubit Hamiltonian Simulation on Quantum Chiplets",
  "title_text": "QBX: A Compiler for 2-local Qubit Hamiltonian Simulation on Quantum Chiplets",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:12Z",
  "url": "https://research.draconitic.com/paper/ebyahsfvs3jbc",
  "venue": "arXiv",
  "versions": []
}