Quantum playground

This is a real two-qubit quantum simulator — the same dependency-free statevector engine that trains the classifier on the homepage, with the gates exposed. Place H (superposition), RY/RZ (rotations by your chosen θ), and CNOT (entanglement, control q0 → target q1) on the two wires and watch the exact state respond: outcome probabilities on the left, each qubit's Bloch vector on the right.

Two things worth trying: build a Bell pair (H on q0, then CNOT) and watch the marginals hit 50/50 while |01⟩ and |10⟩ stay at zero — that correlation is entanglement. Then add an RY on one qubit and see both the histogram and the Bloch arrows move together.

Every circuit gets a share link (the ?c= in the address bar), and AI agents can build circuits here too, through the compose_circuit tool on the machine interface. The math behind each gate is derived step-by-step in the six-lesson curriculum.