论文标题
抗铁磁铁中的木魔纠缠等级
Hierarchy of magnon entanglement in antiferromagnets
论文作者
论文摘要
Heisenberg Antiferromagnet与dzyaloshinskii-Moryia（DM）相互作用的连续变量纠缠在Heisenberg Antiferromagnet中。确定了不同的骨气模式，可以在基态建立磁纠缠的层次结构。我们认为，磁通模式之间的纠缠由简单的晶格特定因子决定，以及DM和Heisenberg交换相互作用的强度之比，并且可以通过量子同型技术的方式检测到镁纠缠。为了说明我们的发现与固态可能的纠缠实验的相关性，考虑了具有钙钛矿晶体结构的典型抗铁磁铁，并且显示长波长镁模式具有最高的纠缠程度。
Continuous variable entanglement between magnon modes in Heisenberg antiferromagnet with Dzyaloshinskii-Moryia (DM) interaction is examined. Different bosonic modes are identified, which allows to establish a hierarchy of magnon entanglement in the ground state. We argue that entanglement between magnon modes is determined by a simple lattice specific factor, together with the ratio of the strengths of the DM and Heisenberg exchange interactions, and that magnon entanglement can be detected by means of quantum homodyne techniques. As an illustration of the relevance of our findings for possible entanglement experiments in the solid state, a typical antiferromagnet with the perovskite crystal structure is considered, and it is shown that long wave length magnon modes have the highest degree of entanglement.
