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Secure Direct Communication Based on Non-Orthogonal Entangled Pairs and Local Measurement

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Abstract

We propose a quantum secure direct communication scheme based on non-orthogonal entangled pairs and local measurement. In this scheme, we use eight non-orthogonal entangled pairs to act as quantum channels. Due to the non-orthogonality of the quantum channels, the present protocol can availably prohibit from all kinds of valid eavesdropping and acquire a secure quantum channel. By local measurement, the sender acquires a secret random sequence. The process of encoding on the random sequence is identical to the one in one-time-pad. So the present protocol is secure. Even for a highly lossy channel, our scheme is also valid. The scheme is feasible with present-day techniques.

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Authors and Affiliations

  1. Coll. of Physics & Communication Electronics, Jiangxi Normal Univ., Nanchang, 330027, China

    Xiao-jie Yi, Yi-You Nie, Yi-bing Huang & Zhi-hui Hong

  2. Key Laboratory of Photoelectron & Telecommunication of Jiangxi Province, Nanchang, 330022, China

    Yi-You Nie

  3. Dept. of Electronics Information Engineering, Nanchang Univ., Nanchang, 330031, China

    Nan-run Zhou

Authors
  1. Xiao-jie Yi
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  2. Yi-You Nie
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  3. Nan-run Zhou
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  4. Yi-bing Huang
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  5. Zhi-hui Hong
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Correspondence to Yi-You Nie.

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Yi, Xj., Nie, YY., Zhou, Nr. et al. Secure Direct Communication Based on Non-Orthogonal Entangled Pairs and Local Measurement. Int J Theor Phys 47, 3401–3407 (2008). https://doi.org/10.1007/s10773-008-9771-5

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  • DOI: https://doi.org/10.1007/s10773-008-9771-5

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