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Controlled Quantum Secure Direct Communication by Using a Five-Atom Cluster State in Cavity QED

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Abstract

We propose an experimentally feasible scheme for implementing controlled quantum secure direct communication by using a five-atom cluster state in cavity QED. According to the results measured by the sender and the controller, the receiver can obtain different secret messages in a deterministic way with unit successful probability. In the communication processes, one only need separate measurements with the assistance of a strong classical driving field. In addition, the scheme is insensitive to the cavity decay and the thermal field.

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Acknowledgments

This work is supported by the National Natural Science Foundation of China (Grant No. 61265001), the Natural Science Foundation of Jiangxi Province, China (Grant No. 20142BAB202005 and No. 20122BAB202005), and the Research Foundation of the Education Department of Jiangxi Province (No. GJJ13236 and No. GJJ10404 and No. GJJ13235).

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Author notes

  1. Li-ping Nie

    Present address: Audit office of Jiangxi Normal University, Nanchang, 330022, China

Authors and Affiliations

  1. Department of physics, Jiangxi Normal University, Nanchang, 330022, China

    Yuan-hua Li, Xiao-lan Li & Li-ping Nie

  2. Key Laboratory of Optoelectronic and Telecommunication of Jiangxi province, Nanchang, 330022, China

    Yuan-hua Li

Authors
  1. Yuan-hua Li
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  2. Xiao-lan Li
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  3. Li-ping Nie
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Correspondence to Yuan-hua Li.

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Li, Yh., Li, Xl. & Nie, Lp. Controlled Quantum Secure Direct Communication by Using a Five-Atom Cluster State in Cavity QED. Int J Theor Phys 54, 3728–3732 (2015). https://doi.org/10.1007/s10773-015-2610-6

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  • DOI: https://doi.org/10.1007/s10773-015-2610-6

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