Guangxu Yang 杨广绪

Guangxu Yang Portrait

I am a Ph.D. student advised by Prof. Jiapeng Zhang at University of Southern California.

In the first three years of my PhD, my research was devoted to developing new techniques [YZ24] [YZ25] for proving communication lower bounds with applications to cryptography and quantum computing.

Contact Information

guangxuy@usc.edu

Publications and Manuscripts

Authors listed alphabetically.

Lifting Theorems for Number-on-Forehead Communication

  • Quantum versus Classical Separation in Simultaneous Number-on-Forehead Communication
    Manuscript
    Guangxu Yang, Jiapeng Zhang
  • Deterministic Lifting Theorems for One-Way Number-on-Forehead Communication
    Manuscript
    Guangxu Yang, Jiapeng Zhang

Communication Lower Bounds through Gadgetless Lifting

  • A Min-Entropy Approach to Multi-Party Communication Lower Bounds
    CCC 2025
    Mi-Ying Huang, Xinyu Mao, Shuo Wang, Guangxu Yang, Jiapeng Zhang
    40th Computational Complexity Conference
  • Gadgetless Lifting Beats Round Elimination: Improved Lower Bounds for Pointer Chasing
    ITCS 2025
    Xinyu Mao, Guangxu Yang, Jiapeng Zhang
    16th Innovations in Theoretical Computer Science
  • Communication Lower Bounds for Collision Problems via Density Increment Arguments
    STOC 2024
    Guangxu Yang, Jiapeng Zhang
    56th Annual ACM Symposium on Theory of Computing
  • Communication Lower Bounds of Key-Agreement Protocols via Density Increment Arguments
    TCC 2023
    Mi-Ying Huang, Xinyu Mao, Guangxu Yang, Jiapeng Zhang
    21st Theory of Cryptography Conference
  • Simulation Methods in Communication Lower Bounds, Revisited
    Manuscript
    Guangxu Yang, Jiapeng Zhang