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Computer Engineering and Science

Comparison of Classical Logic Gates with Quantum Logic Gates

Liang Liu

Published Jan 1, 2005• 0 citations
OpenAlex

Abstract

In this article,we describe the differences between classical logic gates and quantum logic gates,and explain the characteristics of quantum computation,the strong power of the quantum algorithm,and the problem of the realization of quantum logic gates.

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Abstract Alice and Bob explain the difference between classical (traditional) computing and quantum computing, deploying a gentle introduction to classical binary digits (bits) beginning with a brief history of the development of quantum mechanics and computer architecture. The abstract backbone of classical computing is logic gates, which represent changes to input bits under specific rules. These rules, governed by Boolean, logic can be summarized in truth tables, giving the output values for specific input values. The most common classical gates—NOT, AND, NAND, and XOR gates—are introduced. The vocabulary of classical computing provides the basis for understanding quantum computing.