期刊
QUANTUM INFORMATION PROCESSING
卷 22, 期 8, 页码 -出版社
SPRINGER
DOI: 10.1007/s11128-023-04075-1
关键词
Measurement-device-independent deterministic secure quantum communication; Hyper-encoding; Hyperentanglement Bell state analysis
In this paper, a hyper-encoding MDI-DSQC protocol is proposed to increase the ciphertext transmission rate of MDI-DSQC by increasing the capacity of single photons. The protocol adopts the efficient linear-optical partial hyperentangled Bell state analysis, which has potential applications.
Deterministic secure quantum communication (DSQC) can directly transmit ciphertext through the quantum channels. Measurement-device-independent (MDI) DSQC can resist all possible attacks on the imperfect measurement devices. Comparing with conventional DSQC protocols, MDI-DSQC has relatively low ciphertext transmission rate. In this paper, we propose a hyper-encoding MDI-DSQC protocol. The hyper-encoding can effectively increase single photon's capacity and thus increase the ciphertext transmission rate of MDI-DSQC. Our protocol adopts the high-efficient linear-optical partial hyperentangled Bell state analysis, which is feasible under current experimental condition. Our MDI-DSQC protocol is secure in theory. We provide the numerical simulation of its ciphertext transmission rate. Our hyper-encoding MDI-DSQC protocol may have potential application in the quantum communication field.
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