Quantum Summation with an Application to Integration

Details Quantum Summation with an Application to Integration Quantum Summation with an Application to Integration

2001-05-23

arxiv.org/abs/quant-ph/0105116v1

Physics

Quantum Physics

48 pages, paper submitted to the Journal of Complexity

Scientific paper

We study summation of sequences and integration in the quantum model of computation. We develop quantum algorithms for computing the mean of sequences which satisfy a p-summability condition and for integration of functions from Lebesgue spaces L_p([0,1]^d) and analyze their convergence rates. We also prove lower bounds which show that the proposed algorithms are, in many cases, optimal within the setting of quantum computing. This extends recent results of Brassard, Hoyer, Mosca, and Tapp (2000) on computing the mean for bounded sequences and complements results of Novak (2001) on integration of functions from Hoelder classes.

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