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Solution to Information Leakage in a Quantum Network System of QSS-QDC Using χ-Type Entangled States

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Abstract

Recently, Hong et al. (Chin. Phys. Lett. 29:050303, 2012) put forward two quantum secret sharing (QSS) protocols of quantum direct communication (QDC) by using χ-type entangled states. Later, some studies (Gao et al. in Chin. Phys. Lett. 29:110305, 2012; Chin. Phys. Lett. 30:079904, 2013; Liu et al. in Chin. Phys. Lett. 30:039901, 2013; Hong and Yang in Chin. Phys. Lett. 30:069901, 2013; Liu and Chen in Chin. Phys. Lett. 30:079903, 2013) made up for the drawbacks of Hong et al.’s two protocols to some extent. However, the information leakage weakness is still not thoroughly solved. In this Letter, the author analyzes the inner reason of information leakage weakness in detail at first. And then he suggests an effective encoding rule to avoid this weakness.

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Authors and Affiliations

  1. College of Information & Electronic Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China

    Tian-Yu Ye

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  1. Tian-Yu Ye
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Correspondence to Tian-Yu Ye.

Additional information

Supported by the National Natural Science Foundation of China under Grant No. 11375152, and the Natural Science Foundation of Zhejiang Province under Grant No. LQ12F02012.

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Ye, TY. Solution to Information Leakage in a Quantum Network System of QSS-QDC Using χ-Type Entangled States. Int J Theor Phys 53, 1717–1722 (2014). https://doi.org/10.1007/s10773-013-1969-5

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  • DOI: https://doi.org/10.1007/s10773-013-1969-5

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