Chapter 6, Quantum Networking and Teleportation

1. In the Quantum operations for teleportation section, we derive the following formula:


When the initial state of Alice’s qubit is |0⟩, = 1 and = 0. So, the formula becomes



We have four possibilities, and each possibility has three qubits. Alice measures the middle qubit. When that measurement yields the value 1, Bob applies the X gate. So, we have



No matter what values Alice’s measurements yield, Bob’s qubit is in the |0⟩ state. So the value of Alice’s qubit has been teleported to Bob.

The calculation is similar when the initial state of Alice’s qubit is |1⟩.

2. When you hardcode alpha = 0.8228 and beta = 0.5683, a call to add_gates gives you an error message. The message is Sum of amplitudes-squared does not equal one. This happens because the value of |0.8228|2 + |0.5683|2 isn’...