论文标题
通过量子杂质宽松测定学传感手性磁噪声
Sensing chiral magnetic noise via quantum impurity relaxometry
论文作者
论文摘要
我们提出了薄膜中木元素的量子杂质松弛计的理论，与最近的实验表现出定量一致，而无需迄今为止理论模型中使用的任意比例因子。我们的理论表明，原型自旋> 1/2量子杂质与镁质之间的手性耦合在确定杂质弛豫方面起着核心作用，这通过我们在与氮胶合中心接触的镍膜上的实验进一步证实。除了推进具有磁体的混合量子平台中的磁化和理解的变质之外，量子杂质旋转感知手性磁噪声的能力为探测凝结物质中的手性现象的机会提供了机会。
We present a theory for quantum impurity relaxometry of magnons in thin films, exhibiting quantitative agreement with recent experiments without needing arbitrary scale factors used in theoretical models thus far. Our theory reveals that chiral coupling between prototypical spin>1/2 quantum impurities and magnons plays a central role in determining impurity relaxation, which is further corroborated by our experiments on nickel films interfaced with nitrogen-vacancy centers. Along with advancing magnonics and understanding decoherence in hybrid quantum platforms with magnets, the ability of a quantum impurity spin to sense chiral magnetic noise presents an opportunity to probe chiral phenomena in condensed matter.
