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Entanglement Dynamics of Ising Model with Dzialoshinskii-Moriya Interaction in an Inhomogeneous Magnetic Field

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Abstract

This paper investigates the entanglement dynamics of two-spin Ising model with the Dzialoshinskii-Moriya (DM) interaction in an inhomogeneous magnetic field. The system is initially prepared in the Werner state.It is found that the phenomenon of the entanglement sudden death (ESD) appears during the evolution process. We also analyze in detail the effects of the DM interaction, the degree of inhomogeneous magnetic field and the purity of the initial state on the time of ESD. These effects indicate that one can control the entanglement of the system. It is helpful for quantum information processing.

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Authors and Affiliations

  1. School of Physical Science and Technology, Soochow University, Suzhou, 215006, China

    Jie Hu, Jian-Xing Fang & Dai-Guo He

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  1. Jie Hu
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  2. Jian-Xing Fang
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  3. Dai-Guo He
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Correspondence to Jian-Xing Fang.

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Hu, J., Fang, JX. & He, DG. Entanglement Dynamics of Ising Model with Dzialoshinskii-Moriya Interaction in an Inhomogeneous Magnetic Field. Int J Theor Phys 50, 682–688 (2011). https://doi.org/10.1007/s10773-010-0598-5

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  • DOI: https://doi.org/10.1007/s10773-010-0598-5

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