Title:Quantum Journal Club: Demonstration of a Coherent Electronic Spin Cluster in Diamond
Speaker: Xian-zhi Huang Tsinghua University
Time: 2016-11-17 16:00-2016-11-17 17:00


An obstacle for spin-based quantum sensors is magnetic noise due to proximal spins. However, a cluster of such spins can become an asset, if it can be controlled. Here, we polarize and readout a cluster of three nitrogen electron spins coupled to a single nitrogen-vacancy spin in diamond. We further achieve sub-nmlocalization of the cluster spins. Finally, we demonstrate coherent spin exchange between the species by simultaneous dressing of the nitrogen-vacancy and the nitrogen states. These results establish the feasibility of environment-assisted sensing and quantum simulations with diamond spins.