Computational Physics · Research Visualization · Physical AI

My passion is to turn mathematical and physical models into usable research software, and to visualize science along the way. After my M.Sc. in theoretical physics, I now engage deeply with machine learning and robotics.

Portrait of Rene-Marcel Lehner

  • M.Sc. Physics
  • Python
  • Rust
  • TypeScript
  • Simulation
  • Machine Learning & AI
  • Robotics

Projects

Being expanded: more projects, fuller case studies, and documents are being added.

  1. The assembled follower arm, a printed six-joint arm with a two-finger gripper
    2026 – present

    Recover in Real Time

    A robotic-arm platform, assembled and calibrated, for recovery under delay.

    Hardware assembled
  2. Two-link arm in its true world, with the nominal model’s prediction from a moment earlier drawn faded; the gap between the two hands is the residual
    2026 – present

    Residual Worlds

    Keep the known physics, learn only the mismatch, then judge it inside MPC.

    Active research, results pending
  3. Two policies running the same symbolic gridworld scenario side by side
    2026

    Grounded Recovery

    Release preparation: public repository, report, and evidence bundle have not yet passed publication review.

    Release preparation
  4. Two dotted lattices turning against each other, their overlap forming a shifting moiré pattern
    2025 – present

    Envelope Approximation for Photonic Moiré Crystals

    A two-scale theory for twisted photonic crystals, rebuilt after its own audit.

    Research continuation
  5. The Blaze2D mark
    2025 – 2026

    Blaze2D

    A Rust Maxwell eigensolver, validated against MPB, in the browser and in Python.

    Validated release
  6. Particles aligning into flocks under the sampled neighbor rule
    2023

    Neural Swarm Dynamics

    Sampling a few neighbors reproduced flocking; the RL extension did not.

    Archived

This site is being expanded

This portfolio is being expanded. More projects, fuller case studies, documents, and other supporting material are being added. What is published today is dated and complete as it stands; the remaining entries follow as their material passes review.