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Dual-Channel Voice Communication System Based on One-Way Quantum Secure Direct Communication-Classical Optical

Xiuwei Chen1, Dong Pan1, Jianxing Guo1

  • 1Beijing Academy of Quantum Information Sciences, Beijing 100193, China.

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|June 26, 2026
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Summary
This summary is machine-generated.

This study introduces a secure quantum voice communication system using one-way quantum secure direct communication. The novel approach enhances security and efficiency for voice calls, preventing eavesdropping and data leakage.

Keywords:
duplex voice communicationone-time padunidirectional quantum secure direct communication

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Area of Science:

  • Quantum Communication
  • Information-Theoretic Security

Background:

  • Voice communication is fundamental but vulnerable to eavesdropping.
  • Current communication technology needs enhanced security for voice services.
  • Quantum secure direct communication offers robust security against noise and eavesdropping.

Purpose of the Study:

  • To propose a secure and efficient duplex voice communication scheme.
  • To leverage one-way quantum secure direct communication for voice services.
  • To improve communication rate and reduce transmission delay.

Main Methods:

  • Developed a duplex voice communication scheme using one-way quantum secure direct communication.
  • Implemented multi-task parallel and stream processing for performance enhancement.
  • Integrated real-time temperature drift compensation and prediction algorithms for stability and quality.

Main Results:

  • The proposed system significantly improved communication rate and transmission delay.
  • Secure duplex voice communication was achieved using quantum secure direct communication and one-time-key encryption.
  • Laboratory tests confirmed the system meets duplex voice communication performance requirements.

Conclusions:

  • The developed system enables secure and efficient quantum voice communication.
  • This research lays a foundation for broader applications of quantum communication technology.
  • The findings support the industrialization and practical deployment of quantum communication.