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A Novel Practical Quantum Secure Direct Communication Protocol

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Abstract

A novel practical quantum secure direct communication (QSDC) protocol is constructed by utilizing the evolution law of atom via cavity QED. It transmits the atoms from one communicant to the other communicant in a two-step manner. It adopts two-atom product states as the initial quantum resource and the decoy atom technique to guarantee the security against the outside attack. It only needs single-atom measurements, and neither the quantum entanglement swapping nor the unitary operations.

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  1. College of Information and Engineering, Zhengzhou Institute of Technology, Zhengzhou, 450044, Henan, China

    Lu Yin-Ju

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  1. Lu Yin-Ju
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Correspondence to Lu Yin-Ju.

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Yin-Ju, L. A Novel Practical Quantum Secure Direct Communication Protocol. Int J Theor Phys 60, 1159–1163 (2021). https://doi.org/10.1007/s10773-021-04741-z

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  • DOI: https://doi.org/10.1007/s10773-021-04741-z

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