Quantum Communication and Related Technologies

F. Stef Roux

Wenyu Hu, Min Nie

In recent years, quantum communication technology has received widespread attention from the scientific community, and quantum information science technology is one of the key R&D communication technology projects and has been deeply studied. In this process, quantum spin and diffusion attenuation are the important indicators that affect the quality of quantum communication technology. Therefore, it is necessary to study its mechanism in detail to ensure that quantum communication can be carried out effectively. This article is based on the Markov chain, the related mechanism of quantum diffusion, and related research on quantum self-rotation characteristics. It is combined with quantum communication technology based on this to study how to improve the quantum communication system's reliability and stability, enhancing the system's quantum communication capabilities greatly.

XU Xiao-fan

Quantum Communication technology, which achieved many unprecedented breakthroughs in the past several years,is arousing the attentions from related authoritative bodies and the field of communication research with its particular characteristic of perfect security in information transmission. Firstly, in this paper, the course of development and milestones of quantum communication theory and technologies are reviewed. And the state-of-the-art of domestic and foreign quantum communication technologies are summarized, with the conclusion that the technology tends to be mature, and China stands in the front row of the world both in quantum communication theory and experiments. Then, the definition and model of the ideal quantum communication system are discussed and engineering scenarios of quantum communication system based on optical fiber channel and free space optical channel are provided. The security and communication ability now achieved by these scenarios are analyzed, drawing such conclusion that quantum communication technologies has both high practical value and broad development space. Finally, realistic application scenarios and future application prospect of quantum communication technology are presented, in consideration of the requirements and current technology levels.

A.S. Shumovsky

<p>Hongtao Yang, Weijian Zhao, Shu Fu</p>

With the development of technology, quantum technology with enormous military value has become a key technology related to national information security in the application and development of communication systems. The application of quantum communication technology in military and civilian research is of great significance for China’s future information network construction, as well as the safety of people’s lives and property. One need to increase investment in technology, increase investment in technology, and establish a sound policy system and institutional mechanisms. Only by increasing the promotion of this project can one further promote the development of military civilian integration of quantum communication technology in China and gradually establish a strong quantum communication information network. This article introduced the principles and development of quantum communication, and verified through simulation experiments that quantum technology communication has a lower bit error rate and better performance compared to traditional communication systems.

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