Home▸Quantum Physics▸Quantum Tunneling: 2D Wave Packet Through a Barrier

⚛️ Quantum Tunneling: 2D Wave Packet Through a Barrier

Interactive 2D canvas model of a quantum wave packet hitting a potential barrier, solved with the time-dependent Schroedinger equation (split-step Fourier). Drag the barrier, its height and width, or the energy line and compare the measured transmission with the exact rectangular-barrier formula.

Quantum Physics2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

Details

CategoryQuantum Physics

RenderingCanvas 2D

DifficultyModerate

Target FPS60

ControlsDrag the barrier body, its top handle (height) and side handles (width), or the dashed energy line; click the floor to move the packet start. Sliders for energy, packet width, barrier height and width, time speed; six scenario presets, pause, step and re-fire.

quantum tunnelingwave packetschroedinger equationpotential barriertransmission probability

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⚙ Under the hood

quantum tunnelingwave packetschroedinger equationpotential barriertransmission probability

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install