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HelioXv022/README.md

Hi, I'm Ziqi Xu 👋

Physicist & aspiring quantum software engineer, building research code at the intersection of neural networks and quantum many-body physics.

  • 🔭 M.Sc. Physics, University of Waterloo / Perimeter Institute Associate Graduate Student (2024.09–2026.08) — advised by Robert Mann, co-advised by Tim Hsieh
  • 🎓 B.Sc. Theoretical Physics, Nankai University (2020–2024)
  • 🧠 Research interests: cluster states as a key resource for measurement-based quantum computation, how information is stored in quantum states, and what makes quantum states representable and learnable — by classical neural networks, by variational quantum methods like VQE, and under different tensor-network architectures
  • ⚛️ Quantum circuits with PennyLane: variational circuits, cluster-state preparation, and measurement-based protocols
  • 🛡️ Interested in fault-tolerant quantum computing (FTQC): error-correction schemes, quantum code design, and the graph theory behind them
  • 💡 Recently drawn to photonic quantum computing, where measurement-based and fault-tolerant ideas meet real hardware
  • 🛠️ Also building an engineering/embedded-systems portfolio (Arduino, ESP32) alongside physics
  • 📄 Personal site · CV · LinkedIn
  • 📫 z559xu@uwaterloo.ca

🔬 Featured projects

Project Description
cluster-mbqc-toolkit A modular, well-structured Python toolkit built on PennyLane for measurement-based quantum computation: graph-state construction, measurement patterns, and circuit simulation behind clean, reusable APIs
nqs_project Master's thesis work: variational neural quantum states (RBM/RNN ansätze) for 1D spin chains, benchmarked against exact MPS diagnostics
Quantum-Sensing Entangled sensor arrays under phase disorder — quantum Fisher information calculations of quantum advantage under noise
lane-emden-polytropes Numerical ODE solver for Lane-Emden polytropes, stellar structure, and phase-space analysis
mathematical-modeling Five modeling projects: cycling performance, protein networks, wave energy conversion, well trajectory optimization, rare-disease QoL
helioxv022.github.io Source for my personal site & blog

🧰 Tech stack

Scientific computing: Python · PyTorch · JAX · NetKet · PennyLane · TeNPy · SciPy · NumPy Practices: pytest / unittest · GitHub Actions CI Hardware: Arduino Uno R4 WiFi · ESP32


✍️ Recent writing

Check out my blog for posts on neural state learnability, quantum sensing under noise, and measurement-induced correlations in cluster states.


Physicist and engineer at heart — always happy to talk theory, hardware, or anything in between.

Popular repositories Loading

  1. helioxv022.github.io helioxv022.github.io Public

    TeX 1

  2. nqs_project nqs_project Public

    This is my master thesis work.

    Jupyter Notebook 1

  3. Quantum-Sensing Quantum-Sensing Public

    Python 1

  4. lane-emden-polytropes lane-emden-polytropes Public

    Numerical research on Lane-Emden polytropes, stellar structure, and phase-space analysis.

    Python 1

  5. mathematical-modeling mathematical-modeling Public

    Five mathematical and statistical modeling projects covering cycling performance, protein networks, wave energy conversion, well trajectory optimization, and rare-disease quality of life.

    1

  6. cluster-mbqc-toolkit cluster-mbqc-toolkit Public

    Python 1