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A Family of Grover's Quantum Searching Algorithms

Alberto Galindo·Miguel A. Martin-Delgado
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Abstract

We introduce the concepts of Grover operators and Grover kernels to systematically analyse Grover's searching algorithms. Then, we investigate a one-parameter family of quantum searching algorithms of Grover's type and we show that the standard Grover's algorithm is a distinguished member of this family. We show that all the algorithms of this class solve the searching problem with an efficiency of order $O(\sqrt{N})$, with a coefficient which is class-dependent. The analysis of this dependence is a test of the stability and robustness of the algorithms. We show the stability of this constructions under perturbations of the initial conditions and extend them upon a very general class of Grover operators.

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Alberto Galindo, Miguel A. Martin-Delgado. 2000-09-21. A Family of Grover's Quantum Searching Algorithms. https://doi.org/10.1103/physreva.62.062303

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