BB84 (which we discussed in the class).
Homework 6 (|0〉+ i|1〉) · (〈0| − i〈1|) and P2 = (|0〉 − i|1〉) · (〈0|+ i〈1|). 1. Check that the above matrices are projection operators. 2. Check that the above matrices can be used for organizing a von Neumann measurement. 3. Find the classical and quantum outputs of the measurements of a qubit in …