论文标题
用NV中心探测Spinon费米表面的量子噪声
Probing the Quantum Noise of the Spinon Fermi Surface with NV Centers
论文作者
论文摘要
我们研究了带有Spinon费米表面的二维U（1）旋转液态的横向电导率和相应的磁噪声。我们表明，在准静态状态下，这些响应具有与金属相同的波矢量依赖性，但通过无量纲的前因子降低，该因子受到旋孔和chargons和chargon的轨道磁敏感的比率，从而纠正了先前的工作。我们估计，几个GHz的典型NV中心分裂可以舒适地访问这种准静态状态，并估计将其预期的T1乘以候选材料上方的NV中心的预期T1次，例如有机DMIT和SALTS，Monolayer 1T-TAS2/SE2，范围从几个十大到几百毫秒。
We study the transverse electrical conductivity and the corresponding magnetic noise of a two-dimensional U(1) spin liquid state with a spinon Fermi surface. We show that in the quasi-static regime these responses have the same wave-vector dependence as that of a metal but are reduced by a dimensionless pre-factor controlled by the ratio of orbital diamagnetic susceptibilities of the spinons and chargons, correcting previous work. We estimate that this quasi-static regime is comfortably accessed by the typical NV center splittings of a few GHz and estimate that the expected T1 times for an NV center placed above candidate materials, such as the organic dmit and ET salts, monolayer 1T-TaS2/Se2, would range from several tens to a few hundred milliseconds.
