Quantum technology is a frontier technology field developed in recent years. Big data search, code-breaking, machine learning, artificial intelligence, and identification are all directions in which quantum computing excels. Whether it is quantum computing or quantum communication, the purpose is to solve the problems that classical computers cannot solve. It is expected that there will be corresponding commercial applications within 5 years and general applications within 10 years. This book explains complex problems in technical frontiers in an easy-to-understand manner. Avoiding the use of professional knowledge of profound quantum mechanics, advanced mathematics, and computer principles, it provides in-depth details on the basic theories of quantum computers and the latest technologies in a simple way. According to the stages of quantum computer development and the expanding range of applications, this book successively presents the theoretical foundations related to quantum computing and communication, quantum computing, quantum communication and networks, quantum security and cryptosystems, industry case studies, and prospects for the development of quantum technology,

Li Lianning is a professor and his main research fields are computer networks, Internet of Things technology, information management systems and big data analysis for business.