Quantum Circuit Simulator

Single- and two-qubit gates on a 2-qubit register — Bloch sphere visualization

Gate Palette

Selected: H — click qubit wire to place

Circuit

q₀:─────
q₁:─────

Quantum State |ψ⟩

Bloch Spheres

Qubit 0
Qubit 1

Measurement Histogram

How to use: Select a gate, then click a qubit wire to append it.
CNOT uses q₀ as control, q₁ as target.

Bell state: H on q₀, then CNOT → (|00⟩+|11⟩)/√2
Superposition: H on |0⟩ gives equal |0⟩,|1⟩
Bloch sphere: |0⟩=north, |1⟩=south, superpositions on equator