Chuanqi Zhang

I am currently a Ph.D. candidate at the Centre for Quantum Software and Information, University of Technology Sydney, where I feel very fortunate to be advised by Prof. Youming Qiao, as well as co-advised by Prof. Mingsheng Ying and Prof. Troy Lee. Before my Ph.D. journey, I earned my B.Sc. and M.A. in Mathematics from Wuhan University and the University of Wisconsin-Madison, respectively.

My research interests lie in a broad area between mathematics and theoretical computer science. Specifically, I have been working on different algebraic structures, studying their connections and isomorphism problems, and designing corresponding algorithms and protocols for application in post-quantum cryptography.


Preprints and Publications

  1. Preprint
    Key exchange for actions by groups with laws
    Submitted.
  2. Preprint
    Blind signatures from cryptographic group actions
    With Dung Hoang Duong, Xuan Thanh Khuc, Youming Qiao, and Willy Susilo
    Submitted.
  3. Conference
    Faster isomorphism testing of \(p\)-groups of Frattini class \(2\)
    With Gábor Ivanyos, Euan Mendoza, Youming Qiao, and Xiaorui Sun
    FOCS 2024. Invited to the SIAM Journal on Computing Special Issue.
  4. Conference
    On the complexity of isomorphism problems for tensors, groups, and polynomials III: actions by classical groups
    With Zhili Chen, Joshua A. GrochowYouming Qiao, and Gang Tang
    ITCS 2024. The extended version has been submitted to a journal.
    Delivered a contributed talk at TQC 2024.
  5. Journal
    Faster isomorphism testing of \(p\)-groups of Frattini class \(2\)
    With Gábor Ivanyos, Euan Mendoza, Youming Qiao, and Xiaorui Sun
    Accepted to SIAM Journal on Computing, 2025.
  6. Journal
    On linear-algebraic notions of expansion
    Theory of Computing, 2025.
  7. Journal
    Connections between graphs and matrix spaces
    Israel Journal of Mathematics, 2023.

In the News

Jul 17, 2024 I was excited to have a paper accepted to FOCS 2024. Here is a news report from my Ph.D. centre.
Jul 06, 2022 This is a release of my profile interview as a recipient of the Australian Mathematical Sciences Institute (AMSI) Scholarship. Please read it here.
Oct 10, 2021 I was invited for a profile interview to highlight my experiences and achievements during the undergraduate studies, used for Wuhan University’s admissions publicity in my home province. Check it out here (in Chinese).