Quantum Teleportation

Transmit an arbitrary qubit state |ψ⟩ = α|0⟩ + β|1⟩ across space using an entangled pair and 2 classical bits — no quantum channel required after entanglement distribution.

State θ (θ/π) θ = 0.30π

State φ (φ/π) φ = 0.50π

Step 0

Prepare |ψ⟩

Alice holds state α|0⟩+β|1⟩

Step 1

Bell Pair

Create EPR pair (|00⟩+|11⟩)/√2

Step 2

CNOT + H

Alice entangles |ψ⟩ with her half

Step 3

Measure

Alice gets 2 classical bits (m₁m₂)

Step 4

Correct

Bob applies X^m₂ Z^m₁ → |ψ⟩