Yujun (Eugene) LIU

Hong Kong (852) 6571-4676 Email Github Linkedin

Education

Institution Hong Kong University of Science and Technology (HKSAR)
Degree Ph.D. in Atomic, Molecular and Optical Physics
Duration Aug. 2021 - Jul. 2025
Details
  • GPA: 4.2/4.3
  • Key Courses: Quantum Many-Body Theory, Electromagnetic waves & Maxwell equations & Relativity, Modern Atomic Molecular Optical Physics
  • Thesis: Non-Hermitian Spin-Orbit-Coupled Fermions and Beyond (Supervisor: Prof. JO, Gyu-Boong)
Institution South China Normal University (Guangzhou, China)
Degree B. S. in Optoelectronics Information Sci. & Eng.
Duration Sep. 2017 - Jun. 2021
Details
  • GPA: 4.17/5.0 (Rank 1 in 127)
  • Key Courses: Linear Algebra, Probability & Statistics, C Programming Language, Numerical Analysis using MATLAB, Mathematical Methods in Physics, Computer Network Technique, Digital Circuitry, Signal & System, Laser Fundamentals, Optics.

Project Experiences

Project Name Modeling non-Hermitian Quantum Systems, HKUST
Duration Jun. 2023 - Jul. 2025
Responsibilities & Achievements
  • Modeling: Developed numerical models for open quantized systems using high-order ordinary differential equations and matrix discretization, solving for dynamics and eigenvalues with numerical solvers of SciPy/NumPy.
  • AI for Science: Accelerated parameters fitting and filtered outlier data with neural network models in PyTorch.
  • Data Analysis: Organized filtered time-series data via Panda/SQL, recognized key data patterns and validated model.
  • Process Optimization: Coordinated operations across multiple platforms (electronic-driven systems), optimized time-sequence signal synchronization and precision with microsecond-level resolution.
  • Published Works:
    • Third-order exceptional point in non-Hermitian spin-orbit-coupled cold atoms, Physical Review A, 2025 (First Author) [Link]
    • Two-dimensional non-Hermitian skin effect in an ultracold Fermi gas, Nature, 2025 (Fifth Author) [Link]
    • Observing a topological phase transition with deep neural networks from experimental images of ultracold atoms, Optics Express, 2022 (Fifth Author) [Link]
Project Name Modeling novel auto-focusing optical beams, SCNU
Duration Sep. 2019 - Jun. 2021
Responsibilities & Achievements
  • Modeling: Simulated propagation dynamics of novel auto-focusing optical beams with diffraction integral method. Designed convergent discretized numerical solver to model propagation dynamics in MATLAB.
  • Published Works:
    • Shaping autofocusing Airy beams through the modification of Fourier spectrum, Optics Express, 2022 (First Author) [Link]
    • Auto-focusing and self-healing of symmetric odd-Pearcey Gauss beams, Optics Letters, 2020 (First Author) [Link]

Skills & Languages

Programming Python, C++, SQL, Verilog, HTML5, CSS, JavaScript, MATLAB
Tools Microsoft Office, LaTeX, Git, Adobe Illustrator, SolidWorks
Certificates GARP Financial Risk Management Exam - Part I (Top Quartile 1111)
Languages Cantonese (Native), Mandarin (Native), English (Fluent), Japanese (Starter)

Honors

Young Scientists Program Scholarship, HKUST (Donor: AntAlpha) 2025
HKUST Redbird Academic Award, HKUST 2023
Outstanding Undergraduate Thesis, SCNU 2021

Extracurricular Experience

Teaching Assistant Coordinator, Dept. Phys., HKUST
  • Communication: Coordinated teaching affairs, serving as liaison between postgraduate students, department and university administration to ensure smooth communication and operational efficiency.
  • Organization: Organized departmental events (e.g., annual dinners, outdoor activities) for groups of 30-100 participants, overseeing logistics and scheduling.
Sep. 2023 - Aug. 2024
APS DAMOP Meeting, American Physical Society, US
  • Oral presenter: Delivered an oral presentation on “Floquet engineered non-Hermitian system in spin-orbit-coupled fermions” (55th APS DAMOP 2024).
  • Poster presenter: Exhibited a poster on “Observation of a topological phase transition with deep neural networks in spin-orbit-coupled fermions” (54th APS DAMOP 2023).
Jun. 2023 & Jun. 2024