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Efficient Quantum Secure Direct Communication Protocol Based on Quantum Channel Compression

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Abstract

The article presents the concept of quantum channel compression—decrease in the amount of qubits utilized in a protocol—which is achieved by means of data source encoding. It is also a report on an efficient quantum secure direct communication (QSDC) protocol, which is used for transferring predetermined cryptographic keys (e.g., keys that are generated by the algorithm of Advanced Encryption Standard). This type of quantum secure communication combines the ideas of dense coding process and quantum channel compression. It is justified that such a protocol obtains overall transfer efficiency over unity, i.e., over 100%.

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Acknowledgements

The work is supported by the projects 07/10-2016, 01/05-2018, and programme YRPD, which are funded by National Science Fund, Ministry of Education and Science, Bulgaria.

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  1. Technical University of Varna, 1 Studentska Str, 9010, Varna, Bulgaria

    Georgi Bebrov & Rozalina Dimova

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  1. Georgi Bebrov
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  2. Rozalina Dimova
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Correspondence to Georgi Bebrov.

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Bebrov, G., Dimova, R. Efficient Quantum Secure Direct Communication Protocol Based on Quantum Channel Compression. Int J Theor Phys 59, 426–435 (2020). https://doi.org/10.1007/s10773-019-04336-9

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  • DOI: https://doi.org/10.1007/s10773-019-04336-9

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