Effect of Dzialoshinski-Moriya interaction on thermal entanglement of a mixed-spin chain

Effect of Dzialoshinski-Moriya interaction on thermal entanglement of a mixed-spin chain
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DOI：
10.1007/s11433-008-0191-6
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发表时间：
2008-11
期刊：
Science in China Series G: Physics, Mechanics and Astronomy
影响因子：
--
通讯作者：
Xiao-San Ma;Jiayan Zhang;H. Cong;A. Wang
Xiao-San Ma;Jiayan Zhang;H. Cong;A. Wang
中科院分区：
其他
文献类型：
--
作者：
Xiao-San Ma;Jiayan Zhang;H. Cong;A. Wang

文献摘要

被引文献

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研究了外磁场中Dzialoshinski-Moriya（DM）相互作用对混合自旋链热纠缠的影响。研究发现，尽管磁场对混合自旋链中的热纠缠起着积极的收缩作用，但DM相互作用可以使量子热纠缠达到最大值。进一步分析了磁场的不均匀性对量子纠缠的影响。我们的分析将有助于理解DM相互作用对混合自旋链热纠缠的影响。
The effect of Dzialoshinski-Moriya (DM) interaction on thermal entanglement of a mixed-spin chain in an external magnetic field is investigated. It is found that DM interaction may enhance quantum thermal entanglement to a maximal value even though the magnetic field plays a positive role in shrinking thermal entanglement in the mixed-spin chain. Furthermore, the effect of inhomogeneity of the magnetic field on quantum entanglement is analyzed. Our analysis will shed some light on the understanding of the effect of the DM interaction on thermal entanglement of a mixed-spin chain.