A Modification of Grover's Algorithm as a Fast Database Search

TL;DR

This paper proposes a modified version of Grover's algorithm that enables faster database searches, including cases with multiple matching entries, demonstrated through a detailed two-qubit example.

Contribution

The paper introduces a novel modification to Grover's algorithm that improves search efficiency and handles multiple database entries for the same target.

Findings

Modified algorithm achieves faster search times

Explicit two-qubit example illustrates the method

Handles multiple entries with the same target value

Abstract

A modification of Grover's algorithm is proposed, which can be used directly as a fast database search. An explicit two q-bit example is displayed in detail. We discuss the case where the database has multiple entries corresponding to the same target value.