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Quantum Information Processing

, Volume 14, Issue 6, pp 2067–2076 | Cite as

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

  • You-neng Guo
  • Mao-fa FangEmail author
  • Hong-mei Zou
  • Shi-yang Zhang
  • Xiang Liu
Article

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.

Keywords

Dzyaloshinskii–Moriya interaction Realignment criterion  Distillability sudden death 

Notes

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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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • You-neng Guo
    • 1
  • Mao-fa Fang
    • 1
    Email author
  • Hong-mei Zou
    • 1
  • Shi-yang Zhang
    • 1
  • Xiang Liu
    • 1
  1. 1.Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Department of PhysicsHunan Normal UniversityChangshaPeople’s Republic of China

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