论文标题
使用ESR-STM在表面上旋转的纠缠认证
Certifying entanglement of spins on surfaces using ESR-STM
论文作者
论文摘要
我们提出了一项方案，以证明使用扫描隧道显微镜（ESR-STM）携带的电子自旋共振，在人工地表原子和分子自旋阵列中存在纠缠。我们首先概括了将全球旋转易感性作为与各向异性zeeman互动案例的纠缠见证人相关的定理，与表面有关。然后，我们提出了一种测量结合ESR-STM与原子操作的表面旋转阵列的自旋敏感性的方法。我们的计算表明，纠缠可以通过具有最先进的ESR-STM磁力测定法中的抗磁性耦合旋转二聚体和三聚体进行认证。
We propose a protocol to certify the presence of entanglement in artificial on-surface atomic and molecular spin arrays using electron spin resonance carried by scanning tunnel microscopes (ESR-STM). We first generalize the theorem that relates global spin susceptibility as an entanglement witness to the case of anisotropic Zeeman interactions, relevant for surfaces. We then propose a method to measure the spin susceptibilities of surface-spin arrays combining ESR-STM with atomic manipulation. Our calculations show that entanglement can be certified in antiferromagnetically coupled spin dimers and trimers with state of the art ESR-STM magnetometry.
