Single-photon-memory measurement-device-independent quantum secure direct communication

• URL: http://arxiv.org/abs/2212.05661v1
• Date: Mon, 12 Dec 2022 02:23:57 GMT
• Title: Single-photon-memory measurement-device-independent quantum secure direct communication
• Authors: Xiang-Jie Li, Dong Pan, Gui-Lu Long, and Lajos Hanzo
• Abstract summary: Quantum secure direct communication (QSDC) uses the quantum channel to transmit information reliably and securely. In order to eliminate the security loopholes resulting from practical detectors, the measurement-device-independent (MDI) QSDC protocol has been proposed. We propose a single-photon-memory MDI QSDC protocol (SPMQC) for dispensing with high-performance quantum memory.
• Score: 63.75763893884079
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Quantum secure direct communication (QSDC) uses the quantum channel to transmit information reliably and securely. In order to eliminate the security loopholes resulting from practical detectors, the measurement-device-independent (MDI) QSDC protocol has been proposed. However, block-based transmission of quantum states is utilized in MDI-QSDC, which requires practical quantum memory that is still unavailable at the time of writing. For circumventing this impediment, we propose a single-photon-memory MDI QSDC protocol (SPMQC) for dispensing with high-performance quantum memory. The performance of the proposed protocol is characterized by simulations considering realistic experimental parameters, and the results show that it is feasible to implement SPMQC by relying on present-day technology.

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