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Effect of unitary noise on Grover's quantum search algorithm

2003
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Physical Review A. Atomic, Molecular, and Optical Physics
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The effect of unitary noise on the performance of Grover's quantum search algorithm is studied. This type of noise may result from tiny fluctuations and drift in the parameters of the (quantum) components performing the computation. The resulting operations are still unitary, but not precisely those assumed in the design of the algorithm. Here we focus on the effect of such noise in the Hadamard gate W, which is an essential component in each iteration of the quantum search process. To this end

doi:10.1103/physreva.67.042301
fatcat:v6egiiwsw5c7xctuicitbf3pcm