Qubits, gates & entanglement — the Bloch sphere, superposition, interference and teleportation behind quantum algorithms.
Flip a classical bit between 0 and 1, then dial a qubit's superposition angle and phase to see how much richer its state space is.
Drag a state vector around the Bloch sphere or jump to named presets and read live measurement probabilities and amplitudes.
Apply the Hadamard gate to |0> or |1> and watch it create — then undo — an equal superposition on the Bloch sphere.
Build a starting qubit state and apply X, Y and Z gates to trace their 180-degree Bloch-sphere rotations.
Dial a qubit's relative phase around the equator, then apply a second Hadamard to turn invisible phase into visible probability.
Apply the controlled-NOT gate to definite and superposed control qubits and see classical logic give way to entanglement.
Build a gate sequence from H, X, Y, Z, S and T and step through it while tracking the Bloch vector and probabilities.
Shift the phase between two amplitude paths and watch them reinforce or cancel as phasors and combining waves.
Step through Hadamard-then-CNOT to build an entangled Bell pair, then measure it to see the correlated outcome.
Walk through the full protocol that moves an unknown qubit state to Bob using entanglement and two classical bits.