Sub-nanotesla sensitivity at the nanoscale with a single spin

作     者：Zhiyuan Zhao Xiangyu Ye Shaoyi Xu Pei Yu Zhiping Yang Xi Kong Ya Wang Tianyu Xie Fazhan Shi Jiangfeng Du Zhiyuan Zhao;Xiangyu Ye;Shaoyi Xu;Pei Yu;Zhiping Yang;Xi Kong;Ya Wang;Tianyu Xie;Fazhan Shi;Jiangfeng Du

作者机构：CAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences University of Science and Technology of China CAS Center for Excellence in Quantum Information and Quantum PhysicsUniversity of Science and Technology of China National Laboratory of Solid State Microstructures and Department of Physics Nanjing University Hefei National LaboratoryUniversity of Science and Technology of China School of Biomedical Engineering and Suzhou Institute for Advanced ResearchUniversity of Science and Technology of China 

出 版 物：《National Science Review》 (国家科学评论(英文版))

年 卷 期：2023年第10卷第12期

页      面：164-173页

核心收录：

学科分类：080802[工学-电力系统及其自动化] 0808[工学-电气工程] 080202[工学-机械电子工程] 08[工学] 0802[工学-机械工程] 

基　　金：supported by the National Natural Science Foundation of China (T2125011, 81788101, 12274396 and 91636217) the National Key R&D Program of China(2018YFA0306600) the Chinese Academy of Sciences(XDC07000000, GJJSTD20200001, Y201984 and YSBR-068) the Innovation Program for Quantum Science and Technology(2021ZD0302200 and 2021ZD0303204) the Anhui Initiative in Quantum Information Technologies (AHY050000) the China Postdoctoral Science Foundation (2021M703110 and 2022T150631) the Hefei Comprehensive National Science Center,and the Fundamental Research Funds for the Central Universities 

主　　题：magnetic sensitivity spatial resolution quantum sensing nanoscale energy resolution limit 

摘      要：High-sensitivity detection of the microscopic magnetic field is essential in many *** sensitivity and high spatial resolution are mutually contradictory in measurement,which is quantified by the energy resolution *** we report that a sensitivity of 0.5 nT/(Hz)(1/2) at the nanoscale is achieved experimentally by using nitrogen-vacancy defects in diamond with depths of tens of *** achieved sensitivity is substantially enhanced by integrating with multiple quantum techniques,including real-time-feedback initialization,dynamical decoupling with shaped pulses and repetitive readout via quantum *** magnetic sensors will shed new light on searching new physics beyond the standard model,investigating microscopic magnetic phenomena in condensed matters,and detection of life activities at the sub-cellular scale.