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Journal of Physics Conference Series

The Principle and Prospect of Quantum Communication

Yutong Liu

Published Sep 1, 2020• 1 citation
Publisher

Abstract

Abstract With the progress of science and technology, as well as the development of the times, people begin to have higher requirements on the security and efficiency of communication, so quantum communication has attracted much more attention. Quantum communication has lots of advantages such as unconditional security, high transmission efficiency, strong anti-interference ability and good concealment performance. In this paper, the author analyzes the advantages and the present situation of quantum communication. This paper briefly introduces the model of quantum communication network, the quantum computing, data decoding based on quantum computation and the quantum search algorithm concepts, which are described in simple terms. Two quantum secure direct communication protocols are also introduced and analyzed, and the prospects of quantum communication are presented.

DOI
10.1088/1742-6596/1634/1/012139

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Abstract With the progress of science and technology, as well as the development of the times, people begin to have higher requirements on the security and efficiency of communication, so quantum communication has attracted much more attention. Quantum communication has lots of advantages such as unconditional security, high transmission efficiency, strong anti-interference ability and good concealment performance. In this paper, the author analyzes the advantages and the present situation of quantum communication. This paper briefly introduces the model of quantum communication network, the quantum computing, data decoding based on quantum computation and the quantum search algorithm concepts, which are described in simple terms. Two quantum secure direct communication protocols are also introduced and analyzed, and the prospects of quantum communication are presented.
In this paper, the definition and connotation of quantum communication technology are briefly analyzed, and the ideal model of quantum communication is briefly summarized.Secondly, the characteristics and advantages of quantum communication technology are briefly analyzed based on the progress process of quantum information and the existing technological degree and development space of quantum information technology.Finally, the development direction and application prospect of quantum information technology are analyzed, and the future development of quantum communication is analyzed.
Quantum-secure communication and computation have garnered increasing attention due to their powerful search capabilities for certain complex problems and their ability to provide unconditional security. This indicates that classical cryptography, such as asymmetric ciphers based on complex mathematics, faces a significant threat from quantum algorithms. However, quantum cryptography can detect any attempt to eavesdrop on a channel. As a result, the investigation and implementation of quantum computers and quantum-secure communication networks have become essential objectives for numerous research teams. This paper provides an overview of quantum cryptography, including its development, and focuses on the theoretical aspect of quantum secure direct communication (QSDC). This helps readers understand the theoretical operating principles and gain a better understanding of the entire quantum characteristic and protocol operation in the QSDC field. QSDC enables secure communication without previously shared private keys, making it a crucial topic in quantum cryptography research. This paper provides an overview of several well-known versions of QSDC in theory, discussing their applications, challenges and potential future directions.
Quantum security direct communication is based on quantum physics, combined with the classic communication theory .It become a new communication model, its transmission of information on the high efficiency, security has been more and more extensive attention.That is, since the beginning of this century, has been rapid developed.In this paper, we will describe several common quantum secure direct communication protocols and economic quantum secure direct communication network models theoretically.At the end of this paper, we will discuss and analyze the development and the future of quantum safety direct communication.
Quantum security direct communication is based on quantum physics, combined with the classic communication theory .It become a new communication model, its transmission of information on the high efficiency, security has been more and more extensive attention.That is, since the beginning of this century, has been rapid developed.In this paper, we will describe several common quantum secure direct communication protocols and economic quantum secure direct communication network models theoretically.At the end of this paper, we will discuss and analyze the development and the future of quantum safety direct communication.
Abstract Quantum communication has made great breakthroughs in recent years. Because of its characteristics for strict information security transmission and high speed, it has received attention from related research fields around the world. This paper briefly reviews the progress in the field of quantum computing and communication. The basic functions of quantum mechanics related to the quantum communication are first introduced, including qubit, logic gates, postulates, polarization and quantum entanglement. Then the applications of quantum communication are discussed including teleportation, cryptography and quantum networks. Finally, advantages and disadvantages for the current applications are analyzed and the challenges remained in the current research are demonstrated.
With the development of computer and communication technology, many people pay close attention to information security technology. Considering that the current encryption has many malpractices, some persons turn attention to quantum cryptography. Quantum Key Distribution is based on the principles of Heisenberg's uncertainty which guarantees that no eavesdropper can escape detection. According to this principle, this paper makes a study of the quantum cryptography technique, discusses the course of quantum key production and distribution in the quantum communication and the principle of quantum key distribution protocol in the communication by combining the application of quantum key protocol in the communication network. Current experimental progress on this aspect is introduced, existing problems are analyzed and some constructive suggestions are proposed. Finally, the developing trend for the theory of quantum password is prospected.