NWQEC: Toward Efficient Fault-Tolerant Quantum Circuit Compilation

ORAL

Abstract

We present NWQEC, an open-source framework for transpiling and optimizing fault-tolerant quantum computing (FTQC). Beyond conventional circuit transformations, NWQEC integrates two recent advances to address key FTQC bottlenecks. The TACO (Transpiler–Architecture Codesign Optimization) framework applies architecture-informed circuit optimizations, achieving up to 91.7% reduction in Clifford gates and significantly enhancing gate-level parallelism. On the other hand, the TQC (Tableau-based Quantum Compiler) framework supports efficient FTQC optimization and compilation to Pauli-based computation. TQC achieves an average 2.57× speedup in FTQC runtime and over 1000× faster compilation compared to existing tools. Together, these frameworks make NWQEC a powerful and extensible platform for developing and evaluating resource-efficient FTQC pipelines.

*TACO is based upon work supported by the U.S. Department of Energy, Office of Science, National Quantum Information Science Research Centers—Co-design Center for Quantum Advantage (C2QA) under Contract No. DE-SC0012704, the Office of Science, Basic Energy Sciences (PNNL FWP 76274). TQC is based upon work supported by the U.S. Department of Energy, Office of Science, National Quantum Information Science Research Centers, Quantum Science Center. This research was supported in part by the National Research Council (NRC) Canada (grants AQC 003 and AQC 213) and the Natural Sciences and Engineering Research Council (NSERC) of Canada [grant RGPIN-2019-05059]. It used resources of the Oak Ridge Leadership Computing Facility under Contract DE-AC05-00OR22725 and the National Energy Research Scientific Computing Center under Contract DE-AC02-05CH11231. Pacific Northwest National Laboratory is operated by Battelle for the U.S. Department of Energy under Contract DE-AC05-76RL01830.

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Publication: Wang, M., Liu, C., Stein, S., Ding, Y., Das, P., Nair, P. J., & Li, A. (2024). Optimizing FTQC Programs through QEC Transpiler and Architecture Codesign. arXiv preprint arXiv:2412.15434. https://arxiv.org/abs/2412.15434

Wang, M., Liu, C., Garner, S., Stein, S., Ding, Y., Nair, P. J., & Li, A. (2025). Tableau-Based Framework for Efficient Logical Quantum Compilation. arXiv preprint arXiv:2509.02721. https://arxiv.org/abs/2509.02721

Presenters

  • Meng Wang

    • The University of British Columbia
    • University of British Columbia
    • Pacific Northwest National Lab

Authors

  • Meng Wang

    • The University of British Columbia
    • University of British Columbia
    • Pacific Northwest National Lab

  • Chenxu Liu

    • Pacific Northwest National Laboratory

  • Samuel A Stein

    • Pacific Northwest National Laboratory (PNNL)

  • Sean Garner

    • Pacific Northwest National Laboratory

  • Yufei Ding

    • University of California San Diego

  • Poulami Das

    • University of Texas at Austin

  • Prashant Nair

    • The University of British Columbia

  • Ang Li

    • Pacific Northwest National Laboratory
    • Pacific Northwest National Lab
    • Pacific Northwest National Laboratory (PNNL)