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Optimal Dense Coding and Swap Operation Between Two Coupled Electronic Spins: Effects of Nuclear Field and Spin-Orbit Interaction

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Abstract

The effects of nuclear field and spin-orbit interaction on dense coding and swap operation are studied in detail for both the antiferromagnetic (AFM) and ferromagnetic (FM) coupling cases. The conditions for a valid dense coding and under which swap operation is feasible are given.

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Acknowledgments

This work is supported by the National Natural Science Foundation of China (Grant No. 11574022 and 11174024) and the Open Fund of IPOC (BUPT) grants Nos. IPOC2013B007 also supported by the Open Project Program of State Key Laboratory of Low-Dimensional Quantum Physics (Tsinghua University) grants Nos. KF201407, and Beijing Higher Education (Young Elite Teacher Project) YETP 1141.

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Authors and Affiliations

  1. Key Laboratory of Micro-Nano Measurement-Manipulation and Physics (Ministry of Education), School of Physics and Nuclear Energy Engineering; State Key Laboratory of Software Development Environment, Beihang University, Xueyuan Road No. 37, Beijing, 100191, China

    Li Jiang & Guo-Feng Zhang

  2. State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University, Beijing, 100084, China

    Guo-Feng Zhang

  3. Key Laboratory of Quantum Information, University of Science and Technology of China, Chinese Academy of Sciences, Hefei, 230026, China

    Guo-Feng Zhang

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  1. Li Jiang
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  2. Guo-Feng Zhang
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Correspondence to Guo-Feng Zhang.

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Jiang, L., Zhang, GF. Optimal Dense Coding and Swap Operation Between Two Coupled Electronic Spins: Effects of Nuclear Field and Spin-Orbit Interaction. Int J Theor Phys 55, 3555–3563 (2016). https://doi.org/10.1007/s10773-016-2984-0

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  • DOI: https://doi.org/10.1007/s10773-016-2984-0

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