Eigora — Interactive physics, written clearly

Quantum mechanics

Eigenstates, wavepackets, and the geometry of solutions to the Schrödinger equation.

Quantised energy levels and the zero-point energy.

Transmission and reflection at a finite potential step.

Bound states in a confining potential.

Parity, the graphical construction, and how many states a well holds.

Separable states, and degeneracy as lattice points on an ellipse.

3D electron density of hydrogen-like states, in spherical coordinates.

Successive measurements, collapse, and the Bloch sphere.