李行健

李行健

博士研究生

清华大学

简介

My name is Xingjian Li (李行健, IPA: [li ɕiŋ tɕjɛn]). I am a fourth-year Ph.D. candidate at Tsinghua University, fortunate to be advised by Prof. Zhengfeng Ji. I received my B.E. from IIIS, Tsinghua University (Yao Class) in 2022. I am also grateful for the chance to visit EPFL in the Spring of 2025, hosted by Prof. Thomas Vidick.

I have a broad interest in quantum computing and theoretical computer science, while the current topics I am interested in are quantum complexity, error correction, and cryptography.

兴趣爱好

  • Quantum Complexity

  • Quantum Error Correction

  • Quantum Cryptography

教育经历

  • 本科 · 清华大学交叉信息研究院（姚班）

    2018

  • 博士研究生 · 清华大学计算机科学与技术系

    2022

最新发表

Longcheng Li, Qian Li, Xingjian Li, Qipeng Liu (2026). Cryptomania v.s. Minicrypt in a Quantum World. Lecture Notes in Computer Science.

PDF 引用 DOI DOI arXiv

Longcheng Li, Qian Li, Xingjian Li, Qipeng Liu (2026). Impossibility of Perfectly Complete Many-Round Key Agreement in the QROM. arXiv（预印本）.

PDF 引用 arXiv

Bruno Cavalar, Boyang Chen, Andrea Coladangelo, Matthew Gray, Zihan Hu, Zhengfeng Ji, Xingjian Li (2026). A Meta-complexity Characterization of Minimal Quantum Cryptography. Proceedings of the 58th Annual ACM Symposium on Theory of Computing.

PDF 引用 DOI DOI arXiv

Xingjian Li, Ting-Chun Lin, Adam Wills, Min-Hsiu Hsieh (2026). Almost optimal geometrically local quantum LDPC codes in any dimension. Nature Communications.

引用 DOI DOI

Min-Hsiu Hsieh, Xingjian Li, Ting-Chun Lin (2025). Simplified Quantum Weight Reduction with Optimal Bounds. arXiv（预印本）.

PDF 引用 arXiv

Michael Bremner, Zhengfeng Ji, Xingjian Li, Luke Mathieson, Mauro Morales (2025). Parameterized Complexity of Weighted Local Hamiltonian Problems and the Quantum Exponential Time Hypothesis. ACM Transactions on Quantum Computing.

引用 DOI URL