PhD student at ETH Zurich (Spin Physics Group)
Nitrogen-vacancy (NV) center in diamond, a spin qubit with long coherence time up to room temperature, has been demonstrated as a powerful tool for various quantum technologies, especially for quantum sensing. In this presentation, I will show its promising application for investigating nanoscale electronic transport phenomena in condensed matter physics, specifically, hydrodynamic flow in graphene. I will start by introducing the basic mechanism of quantum sensing/imaging with the NV center and the concept of hydrodynamic electronic transport. Next, I will discuss a related paper named ‘Imaging viscous flow of the Dirac fluid in graphene’ (Nature 2020). Lastly, I will show our recent results about observation of current whirlpools in graphene at room temperature. If you want to know more about the NV center, quantum sensing or hydrodynamic electronic transport in graphene, this would be a great chance!