Quantum Computing, Mathematics, Fourier Transform, Quantum Algorithms.
exciting because |+⟩ corresponds to |0⟩ and |-⟩ corresponds to |1⟩ if we measure in the X-basis! Thus, if we apply an H-gate on this ancilla qubit, we are going to measure the qubit either as 0 with probability 1 or 1 with probability 1. Circuit for measuring the control — (4) Now think of this —