Multi-qubit gates
Intermediate · 1 lesson · 5 activities
The gate that makes qubits interact. How CNOT behaves on definite inputs, why it stops looking classical the moment its control is in superposition, and how two gates in sequence build the entanglement everything else depends on.
Lessons
The gate that couples
CNOT looks like an if-statement on definite inputs and stops being one immediately afterwards.
5 activities · 14 min