Teleport a quantum state from Alice to Bob using entanglement + classical communication. Step through the protocol and see every state change.
Step 0: Preparation
Alice has a qubit |ψ⟩ she wants to teleport to Bob. She doesn't know what state it's in — and she can't measure it (that would destroy it). How can she send the state without sending the qubit?
|ψ⟩ = cos(θ/2)|0⟩ + e^(iφ)sin(θ/2)|1⟩