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Grover’s Algorithm — Quantum Computing

Andre Ye
Published in
6 min readFeb 20, 2020

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Grover’s Algorithm is a quantum computing algorithm that can search databases much faster than a classical computer, using amplitude amplification, a property of quantum physics.

The Task

Suppose you are given a large database of N items. One of them has an ID that we want to locate, say, w. To find p, the marked item, using classical computation, one would have to…

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