Bloch vector (current)
Recent trail
|0⟩ / |1⟩ poles
This 2D companion models a single qubit as a real Bloch vector rather than a decorative scene: X/Y/Z/H gate buttons apply the exact Bloch-sphere rotation matrices, a coherence-time slider drives genuine exponential depolarizing decay toward the mixed state, a gate-error-rate slider injects stochastic Pauli noise into each operation, and the measure button performs an honest projective Z-basis collapse with probabilities read straight off the current vector โ so every number on the readout panel follows directly from the physics, not from a cosmetic animation.