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Influence of intrinsic decoherence on entanglement teleportation via a Heisenberg XYZ model with different Dzyaloshinskii–Moriya interactions

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Abstract

We investigate the characteristics of entanglement teleportation of a two-qubit and three-qubit Heisenberg XYZ model under different Dzyaloshinskii–Moriya (DM) interactions with intrinsic decoherence taken into account. The two-qubit results reveal that the dynamics of entanglement is a symmetric function about the coupling coefficient \(J\) for the \(z\)-component DM system, whereas it is not for the \(x\)-component DM system. The ferromagnetic case is superior to the antiferromagnetic case to restrain decoherence when using the \(x\)-component DM system. The dependencies of entanglement, the output entanglement, and the average fidelity on initial state angle \(\alpha \) all demonstrate periodicity. Moreover, the \(x\)-component DM system can get a high fidelity both in two-qubit and in three-qubit teleportation protocol.

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (Grant Nos. 11035001, 11375086, 11105079, and 10975072), the National Major State Basic Research and Development of China (Grant Nos. 2013CB834400 and 2010CB327803), the Chinese Academy of Sciences Knowledge Innovation Project (Grant No. KJCX2-SW-N02), the Research Fund of Doctoral Point (RFDP) (Grant No. 20100091110028), and the Science and Technology Development Fund of Macau (Grant No. 068/2011/A).

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Authors and Affiliations

  1. Department of Physics and Key Laboratory of Modern Acoustic, Nanjing University, Hankou Road 22, Nanjing, 210093, China

    Meng Qin & Zhong-Zhou Ren

  2. College of Sciences, PLA University of Science and Technology, Nanjing, 211101, China

    Meng Qin

  3. Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou, 730000, China

    Zhong-Zhou Ren

  4. Kavli Institute for Theoretical Physics, Chinese Academy of Sciences, Beijing, 100190, China

    Zhong-Zhou Ren

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  1. Meng Qin
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  2. Zhong-Zhou Ren
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Correspondence to Meng Qin.

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Qin, M., Ren, ZZ. Influence of intrinsic decoherence on entanglement teleportation via a Heisenberg XYZ model with different Dzyaloshinskii–Moriya interactions. Quantum Inf Process 14, 2055–2066 (2015). https://doi.org/10.1007/s11128-015-0978-0

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  • DOI: https://doi.org/10.1007/s11128-015-0978-0

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