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Implementation of Grover's Quantum Search Algorithm in a Scalable System

K. -A. Brickman·P. C. Haljan·P. J. Lee·M. Acton·L. Deslauriers·C. Monroe
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Abstract

We report the implementation of Grover's quantum search algorithm in the scalable system of trapped atomic ion quantum bits. Any one of four possible states of a two-qubit memory is marked, and following a single query of the search space, the marked element is successfully recovered with an average probability of 60(2)%. This exceeds the performance of any possible classical search algorithm, which can only succeed with a maximum average probability of 50%.

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K. -A. Brickman, P. C. Haljan, P. J. Lee, M. Acton, L. Deslauriers, C. Monroe. 2005-10-25. Implementation of Grover's Quantum Search Algorithm in a Scalable System. https://doi.org/10.1103/physreva.72.050306

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