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2017 Volume 26 Issue 3
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Xue-Liang Zhao, Jun-Lin Li, Peng-Hao Niu, Hong-Yang Ma, Dong Ruan. 2017: Two-step quantum secure direct communication scheme with frequency coding, Chinese Physics B, 26(3): 231-235. doi: 10.1088/1674-1056/26/3/030302
Citation: Xue-Liang Zhao, Jun-Lin Li, Peng-Hao Niu, Hong-Yang Ma, Dong Ruan. 2017: Two-step quantum secure direct communication scheme with frequency coding, Chinese Physics B, 26(3): 231-235. doi: 10.1088/1674-1056/26/3/030302
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Two-step quantum secure direct communication scheme with frequency coding

  • Department of Physics, Tsinghua University, Beijing 100084, China

  • School of Science, Qingdao University of Technology, Qingdao 266000, China

  • Available Online: 30/12/2017
  • Fund Project: the National Natural Science Foundation of China(Grant .11175094,91221205,and 11547035)%the National Basic Research Program of China(Grant 2015CB921002)
  • Quantum secure direct communication (QSDC) is an important branch of quantum cryptography.It can transmit secret information directly without establishing a key first,unlike quantum key distribution which requires this precursory event.Here we propose a QSDC scheme by applying the frequency coding technique to the two-step QSDC protocol,which enables the two-step QSDC protocol to work in a noisy environment.We have numerically simulated the performance of the protocol in a noisy channel,and the results show that the scheme is indeed robust against channel noise and loss.We also give an estimate of the channel noise upper bound.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Two-step quantum secure direct communication scheme with frequency coding

  • Available Online: 30/12/2017

Abstract: Quantum secure direct communication (QSDC) is an important branch of quantum cryptography.It can transmit secret information directly without establishing a key first,unlike quantum key distribution which requires this precursory event.Here we propose a QSDC scheme by applying the frequency coding technique to the two-step QSDC protocol,which enables the two-step QSDC protocol to work in a noisy environment.We have numerically simulated the performance of the protocol in a noisy channel,and the results show that the scheme is indeed robust against channel noise and loss.We also give an estimate of the channel noise upper bound.

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