Four-party quantum secure direct communication based on hyperentangled bell states

被引:2
|
作者
Guo, Ran [1 ]
Zhou, Ri-Gui [1 ]
Zhang, Xiao-Xue [1 ]
机构
[1] Shanghai Maritime Univ, Sch Informat Engn, Shanghai 201306, Peoples R China
来源
MODERN PHYSICS LETTERS B | 2024年 / 38卷 / 32期
基金
中国国家自然科学基金;
关键词
Quantum secure direct communication; hyperentangled bell states; Eavesdropping attack; quantum channel; EFFICIENT; PROTOCOL; ATTACK;
D O I
10.1142/S0217984924503111
中图分类号
O59 [应用物理学];
学科分类号
摘要
Quantum Secure Direct Communication (QSDC) is a promising approach for secure information exchange. This paper proposes an efficient and secure four-party QSDC scheme utilizing hyperentangled Bell states in the polarization degree of freedom, the first longitudinal momentum degree of freedom and the second longitudinal momentum degree of freedom. The four participants can perform different unitary operations to independently encode their secret messages onto photons in three degrees of freedom, subsequently transmitting them directly through the quantum channel. In this proposed protocol, each degree of freedom of the photon can effectively carry two bits of information. Each round of transmission by a photon enables the four legitimate participants to obtain six classical bits of information. Notably, when compared to other photons based single-degree-of-freedom QSDC network protocols, the capacity of proposed QSDC protocol is tripled. Therefore, it significantly enhances the information transmission capability. Furthermore, comprehensive security analysis shows that our QSDC network protocol can withstand various attacks from external eavesdroppers.
引用
收藏
页数:15
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