u/GuaranteeFit8358

Hi everyone,

I’ve been building an open-source interactive quantum mechanics explorer for students learning QM:

https://mlubinsky.github.io/quantum-explorer

The goal was to put multiple core QM topics into one browser-based tool. Current features include:

1D quantum systems

* Infinite well, harmonic oscillator, barriers, double wells, etc.
* Time-evolving wave packets
* Reflection, tunneling, interference, and packet spreading
* Live plots of |ψ|², momentum space, and expectation values

Scattering & periodic systems

* Finite barriers and resonant tunneling
* Kronig–Penney model and band structure
* Delta-function and Pöschl–Teller potentials
* Reflectionless potentials and transmission behavior

Hydrogen atom

* Interactive orbitals for different n, l, m
* Radial probability density and expectation values
* Interactive Grotrian diagram
* Hydrogenic scaling with nuclear charge Z

External-field effects

* Normal and anomalous Zeeman effects
* Linear Stark effect
* Energy-level splitting visualizations and transition behavior

Spin / Bloch sphere

* Bloch sphere state visualization
* Spin precession
* Stern–Gerlach measurements
* Probabilities and wavefunction collapse

I’d really appreciate feedback from physics students, instructors, or anyone interested in QM visualization.

Hi all,
I built an open-source project for learning quantum mechanics interactively:

https://github.com/mlubinsky/QM

The goal is to put several core QM concepts in one place.
What you can explore:

1D quantum systems

- Play with different potentials (infinite well, harmonic oscillator, etc.)
- Launch a wave packet and watch it evolve
- See |ψ|², momentum space, and expectation values ⟨x⟩, ⟨p⟩ update live
- Observe things like spreading, reflection, and the uncertainty principle in real time

Hydrogen atom

- Visualize orbitals for different n, l, m
- See radial probability density and ⟨r⟩
- Interactive Grotrian diagram (click levels and jump to orbitals)
- Check how energies scale with Z

Spin / Bloch sphere

- Rotate quantum states on the Bloch sphere
- Simulate Stern–Gerlach measurements
- See probabilities and wavefunction collapse live

Why I built it

Most tools I found only cover *one* topic.
I wanted something where students can connect ideas across:

- wavefunctions
- measurement
- superposition
- visualization

Setup

Runs locally (Python + React), ~5 min setup described in README.md:

git clone https://github.com/mlubinsky/QM.git
cd QM
./run.sh        # Mac / Linux — starts backend + frontend, then open http://localhost:5173
run.bat         # Windows    — same, opens two console windows

I would really appreciate feedback on:

- Is it useful for learning QM?
- What concepts are still unclear?
- What features would help you most?

Especially interested in feedback from students who are currently taking QM.

Thanks!