Chapter 03 · Multi-Qubit Circuits
CNOT, Bell states,
your first quantum program.
Topic 02 gave you single-qubit gates on the Bloch sphere. Now we take the step that makes quantum computing actually quantum — two qubits, entangled, on real hardware.
What you will learn
Why CNOT and CZ entangle
Build a Bell state in Qiskit
What the transpiler does
