Quantum Computing - Lecture Notes - …

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Note that M† 0M0 M0, hence p (0)= h ψ j M0 ψ i =[a 00 b] 10 a b = = [a 0 b] a = j a 2 Hence the probability of measuring j 0 i is related to its probability amplitude a by way of a 2. It important to note that the state after measurement is related to the outcome of the measurement.

  Computing, Quantum, Quantum computing