About Publications Teaching
About
Hi! I'm Joshua Viszlai, a Computer Science PhD student at the University of Chicago advised by Prof. Fred Chong. I previously completed my B.S. in Computer Science and minor in Physics at Georgia Tech.

My research aims to bridge the gap between current quantum devices and fault-tolerant quantum computation. I'm primarily focused on designing quantum error correction schemes in the context of today's physical systems. Although I'm also interested in quantum algorithms and near-term applications of quantum computers. My work is a part of EPiQC (Enabling Practical-scale Quantum Computation), an NSF Expedition in Computing. Previously at Georgia Tech I worked on classical compilers, computer architecture, and robotics.
Publications
  • SWIPER: Minimizing Fault-Tolerant Quantum Program Latency via Speculative Window Decoding(arXiv)
    Joshua Viszlai, Jason D Chadwick, Sarang Joshi, Gokul Subramanian Ravi, Yanjing Li, Frederic T Chong
    To appear: International Symposium on Computer Architecture (ISCA 2025)

  • Averting multi-qubit burst errors in surface code magic state factories(arXiv) Best Paper Award
    (1st Place Quantum Systems Software)
    Jason D Chadwick, Christopher Kang, Joshua Viszlai, Sophia Fuhui Lin, Frederic T Chong
    IEEE International Conference on Quantum Computing and Engineering (QCE 2024)

  • Matching Generalized-Bicycle Codes to Neutral Atoms for Low-Overhead Fault-Tolerance(arXiv)
    Joshua Viszlai, Willers Yang, Sophia Fuhui Lin, Junyu Liu, Natalia Nottingham, Jonathan M Baker, Frederic T Chong
    Under Review

  • Interleaved Logical Qubits in Atom Arrays
    Joshua Viszlai, Sophia Fuhui Lin, Siddharth Dangwal, Conor Bradley, Vikram Ramesh, Jonathan M Baker, Hannes Bernien, Frederic T Chong
    IEEE International Symposium on High-Performance Computer Architecture (HPCA 2025)

  • Codesign of quantum error-correcting codes and modular chiplets in the presence of defects(arXiv)
    Sophia Fuhui Lin, Joshua Viszlai, Kaitlin N Smith, Gokul Subramanian Ravi, Charles Yuan, Frederic T Chong, Benjamin J Brown
    ACM International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS 2024)

  • Fast Fingerprinting of Cloud-based NISQ Quantum Computers(arXiv)
    Kaitlin N Smith, Joshua Viszlai, Lennart Maximilian Seifert, Jonathan M Baker, Jakub Szefer, Frederic T Chong
    IEEE International Symposium on Hardware Oriented Security and Trust (HOST 2023)

  • Training Quantum Boltzmann Machines with Coresets(arXiv)
    Joshua Viszlai, Teague Tomesh, Pranav Gokhale, Eric Anschuetz, Frederic T Chong
    IEEE International Conference on Quantum Computing and Engineering (QCE 2022)

  • SupermarQ: A Scalable Quantum Benchmark Suite(arXiv) Best Paper Award
    Teague Tomesh, Pranav Gokhale, Victory Omole, Gokul Subramanian Ravi, Kaitlin Smith, Joshua Viszlai, Xin-Chuan Wu, Nikos Hardavellas, Margaret R. Martonosi, Frederic T Chong
    IEEE International Symposium on High-Performance Computer Architecture (HPCA 2022)

  • Adapting Quantum Approximation Optimization Algorithm (QAOA) for Unit Commitment (arXiv)
    Samantha Koretsky, Pranav Gokhale, Jonathan M. Baker, Joshua Viszlai, Honghao Zheng, Niroj Gurung, Ryan Burg, Esa Aleksi Paaso, Amin Khodaei, Rozhin Eskandarpour, Frederic T Chong
    IEEE International Conference on Quantum Computing and Engineering (QCE 2021)
Teaching
  • Co-Instructor for UChicago's CMSC32900 - Quantum Computer Systems (Spring 2023, Spring 2025)
  • Teaching Assistant for UChicago's CMSC32900 - Quantum Computer Systems (Spring 2022)
  • Teaching Assistant for UChicagoX's Quantum Computer Systems Design (Fall 2021 - Present)
  • Computer Science Instuctor for Georgia Governor's Honors Program (Summer 2021)
  • Georgia Tech's CS2110 - Computer Organization and Programming
    • Head Teaching Assistant (Fall 2019 - Spring 2020)
    • Teaching Assistant (Spring 2018 - Spring 2019)