Problems of a quantum secure direct communication scheme based on intermediate-basis
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Article number | 218 |
Journal / Publication | Quantum Information Processing |
Volume | 23 |
Issue number | 6 |
Online published | 31 May 2024 |
Publication status | Published - Jun 2024 |
Link(s)
Abstract
Quantum secure direct communication is a significant branch of quantum cryptography. Recently, a quantum secure direct communication scheme based on intermediate-basis was proposed (Liang et al. in Front Phys 18(5):51301, 2023 https://doi.org/10.1007/s11467-023-1284-4). It is believed that the scheme can improve the efficiencies of security detection and information encoding by utilizing the intermediate-basis. However, this paper points out two serious problems with the aforementioned scheme. Firstly, it fails to utilize two distinct bases since the intermediate-basis is merely a variant of the Bell basis. Accordingly, the quantum secure direct communication scheme based on intermediate-basis cannot achieve the promised high efficiency. Secondly, even if the intermediate-basis is substituted with another quantum basis, the modified quantum secure direct communication scheme cannot achieve the promised high efficiency because the receiver cannot correctly decode the secret message from the final entangled pairs. It is crucial to design correct and efficient quantum secure direct communication protocols. This work can remind the developers of quantum secure direct communication to avoid such pitfalls when they enhance the robustness and efficacy of their schemes. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2024
Research Area(s)
- Quantum secure direct communication, Transmission efficiency, Bell state, Intermediate-basis
Citation Format(s)
Problems of a quantum secure direct communication scheme based on intermediate-basis. / Zou, Xiangfu; Wang, Xin; Zheng, Shenggen et al.
In: Quantum Information Processing, Vol. 23, No. 6, 218, 06.2024.
In: Quantum Information Processing, Vol. 23, No. 6, 218, 06.2024.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review