133 citations · 601 across the 31 of their papers we have counts for
7 papers · 1 filter
Multi-parameter quantum metrology with stabilized multi-mode squeezed state
Yue Li, Xu Cheng, Lingna Wang +11
Squeezing a quantum state along a specific direction has long been recognized as a crucial technique for enhancing the precision of quantum metrology by reducing parameter uncertai…
Observation of the Knot Topology of Non-Hermitian Systems in a Single Spin
Yang Wu, Yunhan Wang, Xiangyu Ye +5
The non-Hermiticity of the system gives rise to distinct knot topology that has no Hermitian counterpart. Here, we report a comprehensive study of the knot topology in gapped non-H…
Improved Limits on an Exotic Spin- and Velocity-Dependent Interaction at the Micrometer Scale with an Ensemble-NV-Diamond Magnetometer
Diguang Wu, Hang Liang, Man Jiao +5
Searching for exotic interactions provides a path for exploring new particles beyond the standard model. Here, we used an ensemble-NV-diamond magnetometer to search for an exotic s…
In situ electron paramagnetic resonance spectroscopy using single nanodiamond sensors
Zhuoyang Qin, Zhecheng Wang, Fei Kong +7
An ultimate goal of electron paramagnetic resonance (EPR) spectroscopy is to analyze molecular dynamics in place where it occurs, such as in a living cell. The nanodiamond (ND) hos…
Phased Geometric Controls of V-Shaped Three-Level System for Zero-field Quantum Sensing
Zhijie Li, Xiangyu Ye, Xi Kong +6
Here we propose and demonstrate a phased geometric control protocol for zero-field double quantum gates in a V-shaped three-level spin system. This method utilizes linearly polariz…
Imaging magnetism evolution of magnetite to megabar pressure range with quantum sensors in diamond anvil cell
Mengqi Wang, Yu Wang, Zhixian Liu +9
High-pressure diamond anvil cells have been widely used to create novel states of matter. Nevertheless, the lack of universal in-situ magnetic measurement techniques at megabar pre…