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arXiv 1004.2830quant-ph
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局部猝灭后XXZ海森堡自旋链中的长程纠缠

Long-range entanglement in the XXZ Heisenberg spin chain after a local quench

Jie Ren, Shiqun Zhu

摘要:

利用自适应含时密度矩阵重整化群方法研究了一维自旋1/2各向异性XXZ模型的长程纠缠动力学。当对系统中的一个边界键进行局部猝灭时,可以产生长程纠缠。各向异性相互作用对长程纠缠的最大值和达到最大长程纠缠的时间都有很大的影响。局域耦合对长程纠缠有显著影响,但在达到最大长程纠缠时可以忽略。

英文摘要:

The long-range entanglement dynamics of an one-dimensional spin-1/2 anisotropic XXZ model are studied using the method of the adaptive time-dependent density-matrix renormalization-group. The long-range entanglement can be generated when a local quench on one of boundary bonds is performed in the system. The anisotropic interaction has a strong influence both on the maximal value of long-range entanglement and the time of reaching the maximum long-range entanglement. The local coupling has a notable impact on the long-range entanglement, but it can be neglected in the time of reaching the maximal long-range entanglement.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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