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Sudden death of distillability in a two-qutrit anisotropic Heisenberg spin model

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Abstract

Sudden death of distillability for a two-qutrit anisotropic Heisenberg XX chain with Dzyaloshinskii–Moriya (DM) interaction in an inhomogeneous magnetic field is studied in detail. By using the negativity and realignment criterion, we show that certain initial prepared free entangled states may become bound entangled or separable states in a finite time. Moreover, the influences of the isotropic bilinear interaction parameter, the external magnetic field strength, the DM interaction parameter, as well as the intrinsic decoherence parameter on the possibility of distillability sudden death (DSD) have been studied. The results show, controlling the isotropic bilinear interaction parameter, the external magnetic field strength, the DM interaction parameter, as well as the intrinsic decoherence parameter, can accelerate the possibility of DSD in the present model.

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Acknowledgments

This work is supported by the National Natural Science Foundation of China (Grant Nos. 11374096 and 11074072) and Hunan Provincial Innovation Foundation for Postgraduate (CX2014B194).

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Authors and Affiliations

  1. Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Department of Physics, Hunan Normal University, Changsha, 410081, People’s Republic of China

    You-neng Guo, Mao-fa Fang, Hong-mei Zou, Shi-yang Zhang & Xiang Liu

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  1. You-neng Guo
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  2. Mao-fa Fang
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  3. Hong-mei Zou
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  4. Shi-yang Zhang
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  5. Xiang Liu
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Correspondence to Mao-fa Fang.

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Guo, Yn., Fang, Mf., Zou, Hm. et al. Sudden death of distillability in a two-qutrit anisotropic Heisenberg spin model. Quantum Inf Process 14, 2067–2076 (2015). https://doi.org/10.1007/s11128-015-0974-4

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  • DOI: https://doi.org/10.1007/s11128-015-0974-4

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