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Pattern recognition on a quantum computer

Ralf Schützhold
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Abstract

By means of a simple example it is demonstrated that the task of finding and identifying certain patterns in an otherwise (macroscopically) unstructured picture (data set) can be accomplished efficiently by a quantum computer. Employing the powerful tool of the quantum Fourier transform the proposed quantum algorithm exhibits an exponential speed-up in comparison with its classical counterpart. The digital representation also results in a significantly higher accuracy than the method of optical filtering. PACS: 03.67.Lx, 03.67.-a, 42.30.Sy, 89.70.+c.

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Ralf Schützhold. 2002-12-03. Pattern recognition on a quantum computer. https://doi.org/10.1103/physreva.67.062311

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