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Wavelet Quantum Search Algorithm with Partial Information

Sangwoong Park·Joonwoo Bae·Younghun Kwon
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Abstract

It is questionable that Grover algorithm may be more valuable than a classical one, when a partial information is given in a unstructured database. In this letter, to consider quantum search when a partial information is given, we replace the Fourier transform in the Grover algorithm with the Haar wavelet transform. We then, given a partial information $L$ to a unstructured database of size $N$, show that there is the improved speedup, $O(\sqrt{N/L})$.

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Sangwoong Park, Joonwoo Bae, Younghun Kwon. 2003-03-06. Wavelet Quantum Search Algorithm with Partial Information. https://arxiv.org/abs/quant-ph/0303025

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