Group Seminar via Zoom: NV-Diamond magnetometry and Nonlinearity between Rydberg polaritons.
Zhengruilong Wang, USTC, China
Group meeting via video conference, Zoom
Tuesday, January 18th, 09:00 am (MEZ)
Due to the Covid-19 pandemic, we are still holding our group seminars and journal clubs via video conference.This procedure enables us to continue our research, enhance discussions and exchange important information.
This presentation introduces my recent work in the fields of quantum sensing and quantum optics. First, nitrogen-vacancy (NV) centers in diamond have attracted attention as magnetic field sensors with high spatial resolution. Our work focused on designing and building a highly sensitive nitrogen-vacancy-center-based magnetometer, which can operate at zero-bias-magnetic field conditions. Second, studying the strongly correlated interaction is a fundamental aspect as the possible emergent strong nonlinearity and abundant non-trivial phenomena in the field of many-body physics. We conducted experiment of many-body interaction enhanced nonlinearity based on the Rydberg D-state polaritons. We observed a nonlinear response with a peaking shape, which is consistent with the many-body dephasing model.
If you would like to join our group seminars via Zoom, please contact us for more information.