论文标题
强耦合方案中的木元素介导的自旋纠缠
Magnon mediated spin entanglement in the strong coupling regime
论文作者
论文摘要
我们表明，在强耦合方案中，可以通过镁极化模式将两个自旋缺陷（SD）纠缠在一起。镁质模式由抗铁磁（AF）MNF $ _ {2} $ layer提供，其分散体的特征是层的厚度。宏观量子电动力学理论用于描述绿色功能是其核心元素的光 - 物质相互作用。单个SD通过刺激镁polariton模式而放松，表现出purcell因子的高增强值。当考虑两个SD时，观察到它们之间的振荡性种群交换，这是强烈的耦合的迹象，其中并发值用于量化纠缠水平。可以使用较薄的AF层通过远距离耦合来促进多个自旋之间的相互作用，这是在量子测量和计算领域中制造高需求应用的所需功能。
We present that two spin defects (SDs) can be entangled through a magnon polariton mode, within the strong coupling regime. The magnonic modes are provided by an antiferromagnetic (AF) MnF$_{2}$ layer and their dispersion is characterized by the layer's thickness. The macroscopic quantum electrodynamics theory is used to describe the light-matter interactions, where the Green's functions are its core element. The individual SD relaxes by exciting the magnon polariton modes, exhibiting high enhancement values of the Purcell factor. When two SDs are considered, an oscillatory population exchange is observed between them, a sign of strong light-matter coupling, where the concurrence value is used to quantify the level of entanglement. The thinner AF layers can potentially be used to promote interactions between multiple spins through long range coupling, this is a desired feature to fabricate high demand applications in the fields of quantum measurement and computation.
