Abstract
D. R. Simon stated a problem, so-called Simon’s problem, whose computational complexity is in the class BQPψ but not in BPPψ, where ψ is the function or oracle given in the problem. This result indicates that BPP may be strictly included in its quantum counterpart, BQP. Later, G. Brassard and P. Høyer showed that Simon’s problem and its extended version can be solved by a deterministic polynomial time quantum algorithm. That is, these problems are in the class EQPψ. In this paper, we show that Simon’s problem and its extended version can be deterministically solved in a simpler and more concrete way than that proposed by G. Brassard and P. Høyer.
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Mihara, T., Sung, S. Deterministic polynomial-time quantum algorithms for Simon’s problem. comput. complex. 12, 162–175 (2003). https://doi.org/10.1007/s00037-003-0181-z
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DOI: https://doi.org/10.1007/s00037-003-0181-z