State to Teleport
Control
Protocol:
1. Prepare |ψ⟩ = α|0⟩+β|1⟩
2. Share Bell pair |Φ+⟩
3. Alice: CNOT + H, then measure
4. Send 2 classical bits
5. Bob applies X^m₁ Z^m₂
Key insight:
No faster-than-light communication — classical bits needed for correction.
No-cloning:
Alice's state is destroyed during Bell measurement — teleported, not copied.
1. Prepare |ψ⟩ = α|0⟩+β|1⟩
2. Share Bell pair |Φ+⟩
3. Alice: CNOT + H, then measure
4. Send 2 classical bits
5. Bob applies X^m₁ Z^m₂
Key insight:
No faster-than-light communication — classical bits needed for correction.
No-cloning:
Alice's state is destroyed during Bell measurement — teleported, not copied.