Abstract
Quantum communication is an emerging interdisciplinary discipline that combines classical telecommunication and quantum mechanics. This paper discusses the recent progress of quantum communication in terms of the basic theoretical framework of quantum communication technology, optical devices, state-of-the-art applications. Based on the analysis, quantum communication technology research hotspots mainly involve quantum key distribution, quantum confidential communication, quantum invisible transmission, quantum entanglement, quantum cryptography, etc., which exhibits an increasingly rich trend. In addition, the limitations of the quantum communication are demonstrated from the perspective of practical applications. Afterwards, the future prospects of quantum communication technology are proposed accordingly. These results reveal that quantum communication applications are promising and are moving toward practicality.
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