The Quantum Turtle · Quantum Play Lab

Learn quantum ideas by playing.

Try a quantum idea for yourself. Start with one qubit, press a gate, and see what happens.

Start here · Circle Notation

My First Qubit

See one qubit in two circles. Use the sliders to change its chances of 0 and 1. Press a gate, then measure the result.

This browser toy is an early model for a real wooden learning toy.

Play with My First Qubit → More experiments ↓

Explore further

More ways to learn

Start with two circles. Then try the 3D Bloch sphere or a class activity.

Interactive simulator

The Bloch Sphere

Explore quantum states in 3D. Turn the sphere, try the gates, and check the chances of 0 or 1.

Explore The Bloch Sphere ↗ Interactive experiment · Solo or two people

BB84 Quantum Key Lab

Play Alice and Bob. Prepare qubits, compare bases, build a shared key, and test what happens when Eve listens in.

Play the BB84 experiment ↗

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