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arXiv 1005.4448quant-ph
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纠缠条件在自旋系统中的应用

Application of entanglement conditions to spin systems

Hongjun Zheng, Ho Trung Dung, Mark Hillery

摘要:

关于自旋系统中的纠缠已经有了大量的研究。这些通常集中在检查单个自旋之间的纠缠或确定系统的状态是否完全可分离。在这里,我们提出的条件,使我们能够确定是否块的自旋纠缠。我们表明,有时这些条件可以检测纠缠比涉及个别自旋的条件。我们应用这些条件来研究自旋波态的纠缠,无论是当只有几个磁振子存在,也在有限的温度。

英文摘要:

There have been numerous studies of entanglement in spin systems. These have usually focussed on examining the entanglement between individual spins or determining whether the state of the system is completely separable. Here we present conditions that allow us to determine whether blocks of spins are entangled. We show that sometimes these conditions can detect entanglement better than conditions involving individual spins. We apply these conditions to study entanglement in spin wave states, both when there are only a few magnons present and also at finite temperature.

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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