Yuejia Zhang

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Zürich, Switzerland, Jan 2024.

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Outside Research

Hi, I am Yuejia (Nina) Zhang, a final-year Ph.D. student in Computational Mathematics at Fudan University, Shanghai, China. I am jointly supervised by Professor Weiguo Gao and Professor Yingzhou Li. I expect to graduate in June 2026 and am currently looking for a postdoc position. [CV, updated March 2026]

My research focuses on numerical linear algebra and high-performance algorithms for quantum chemistry, especially the development of efficient solvers for the many-body Schrödinger equation. I am particularly interested in coordinate descent methods, large-scale eigenvalue problems, tensor-based techniques, and scalable implementations for electronic structure computations. Performance is a central priority for me, and I am dedicated to bridging mathematical analysis with practical HPC software engineering.

In addition to my research, I serve as the HPC administrator of our research group’s computing cluster.

Outside of academia, I am passionate about cycling 🚴‍♀️, cooking 🍳, and coffee ☕.

Experience

  • Visiting Researcher, HPNALGS Group, EPFL, Lausanne, Switzerland

  • Ph.D. in Computational Mathematics, Fudan University, Shanghai, China

  • B.Sc. in Data Science, Fudan University, Shanghai, China

Research

Publications

  • Yuejia Zhang, Weiguo Gao, Yingzhou Li. Parallel Multi-Coordinate Descent Methods for Full Configuration Interaction, Journal of Chemical Theory and Computation, 21(5), 2325–2337 (2025). [preprint] [doi]

  • Yuejia Zhang, Weiguo Zheng, Zhijie Zhang, Peng Peng, Xuecang Zhang. Hybrid Subgraph Matching Framework Powered by Sketch Tree for Distributed Systems, ICDE 2022 (38th IEEE International Conference on Data Engineering). [conference paper]

Software

  • CDFCI: C++ implemented Coordinate Descent Full Configuration Interaction (CDFCI) package for quantum chemistry calculation. https://github.com/CDFCI/CDFCI

Talks

  • CDFCI and Beyond: Tackling Large-Scale Eigenvalue Problems in Many-Body Quantum Mechanics with Coordinate Descent Methods [slides]
    • Mar 9, 2026 — Seminars of the Research Group Computational Methods in Systems and Control Theory, Max Planck Institute for Dynamics of Complex Technical Systems Magdeburg, Germany
    • Mar 12, 2026 — Invited Talk, Technical University of Munich, Munich, Germany
  • CDFCI: High-Performance Parallel Software for Eigenvalue Problems in Many-Body Schrödinger Equation [slides]
    • Mar 5, 2026 — SIAM Conference on Parallel Processing for Scientific Computing (PP26), Berlin, Germany
    • Mar 18, 2026 — S26 Modelling, analysis and simulation of molecular systems, GAMM Annual Meeting 2026, Stuttgart, Germany
  • Parallel Coordinate Descent Methods for Full Configuration Interaction [slides, poster]
    • Mar 19, 2024 — S26 Modelling, analysis and simulation of molecular systems, GAMM Annual Meeting 2024, Magdeburg, Germany
    • May 15, 2024 — SIAM Conference on Applied Linear Algebra (LA24), Paris, France
    • Nov 19, 2024 — Invited Talk, Beijing Normal University, Beijing, China
    • Nov 20, 2024 — PKU Applied Math Lunch Seminar, Beijing, China
    • Dec 25, 2024 — Workshop on Scientific Computing and Machine Learning, Tianyuan Center, Kunming, China
    • May 22, 2025 — Invited Talk, Tongji University, Shanghai, China
    • Jun 2, 2025 — NUS-Fudan–ZJU PhD Meeting, Singapore
    • Jul 20, 2025 — Poster Presentation, Fudan Summer School on Scientific Computing, Shanghai, China
  • Density Matrix Renormalization Group in Quantum Chemistry [link]

Awards

  • SIAM PP26 Student Travel Award, 2026
  • SIAM LA24 Student Travel Award, 2024

Teaching

  • MATH20007.01, Numerical Algorithms with Case Studies I — Fall 2025
  • DATA130002h, Numerical Algorithms with Case Studies I — Fall 2023
  • MATH130165h, Numerical Linear Algebra and Optimization — Spring 2022 (Nominated for Excellent TA Award)

Academic Service

  • Student Organizer, Fudan Summer School on Scientific Computing, Fudan University — Summer 2025 [homepage]
  • Student Organizer, Applied Math PhD Seminar, Fudan University — Spring 2023 [homepage]

Skills

Languages
Chinese (native), English (fluent), French (fluent)
Programming
C/C++, Python, MATLAB, R
Tools
Linux, Git, Docker, Slurm, Server Management