About Schrödinger Playground

This is an interactive, browser-based 2D quantum mechanics simulator designed to help build physical intuition.

It allows users to explore time-dependent Schrödinger-equation dynamics using Gaussian wave packets on customizable potential landscapes, with no installation or setup required. A collection of curated preset experiments is included, covering common quantum phenomena such as interference, tunneling, eigenstates, and scattering.

Time evolution is performed using the Crank–Nicolson method for numerical stability, with a Patra–Karttunen 9-point Laplacian stencil for improved spatial accuracy. Eigenstates are constructed via imaginary-time evolution with Gram–Schmidt orthogonalization.

The project is intended as a learning and teaching companion for students, educators, and self-learners. The focus is on visual intuition, experimentation, and accessibility rather than symbolic derivations.

This project is independently developed and free to use for learning and exploration. Optional educator-focused features for classroom use may be added in the future.

Feedback from instructors, students, and researchers is very welcome.