Progress in quantum secure direct communication

doi:10.12267/j.issn.2096-5931.2021.07.001

Abstract

Abstract: Quantum secure direct communication (QSDC) is a quantum secure communication technology that can directly transmit confidential information over a quantum channel. It is different from the classical communication that achieves reliable communication under noisy channels. It can achieve reliable and secure communication under both noisy and eavesdropping channels. Through explaining the principle of quantum direct communication, the main
development stages in the past 20 years, and the technical difficulties that have been broken through in the process from theory to practicality, the future development and application prospects of quantum direct communication are analyzed and prospected.

Key words: communication security, quantum direct communication, wiretap channel theory

LONG Guilu, PAN Dong, . Progress in quantum secure direct communication[J]. Information and Communications Technology and Policy, 2021, 47(7): 1-7.

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http://ictp.caict.ac.cn/EN/10.12267/j.issn.2096-5931.2021.07.001

http://ictp.caict.ac.cn/EN/Y2021/V47/I7/1

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