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Micron-resolved quantum precision measurement of magnetic field at the Tesla level: 《Chinese Physics B》2024年第12期95-99,共5页Si-Han An Shi-Yu Ge Wen-Tao Lu Guo-Bin Chen Sheng-Kai Xia Ai-Qing Chen Cheng-Kun Wang Lin-Yan Yu Zhi-Qiang Zhang Yang Wang Gui-Jin Tang Hua-Fu Cheng Guan-Xiang Du; Project supported by the National Key R&D Program of China(Grant No.2021YFB2012600)。; We develop a quantum precision measurement method for magnetic field at the Tesla level by utilizing a fiber diamond magnetometer.Central to our system is a micron-sized fiber diamond probe positioned on the surface o...; 关键词：nitrogen-vacancy center fiber diamond magnetometer precision measurement

A quantum-enhanced magnetometer using a single high-spin nucleus in silicon: 《Chinese Physics B》2024年第9期110-115,共6页Tao Xin Ke Zhang Jun Li; the National Natural Science Foundation of China(Grant Nos.1212200199,12122506,12004165,12275117,and 12204230);Guangdong Basic and Applied Basic Research Foundation(Grant Nos.2021B1515020070 and 2022B1515020074);Guangdong Provincial Key Laboratory(Grant No.2019B121203002);Shen-zhen Science and Technology Program(Grant Nos.KQTD20200820113010023,RCBS20200714114820298,and RCYX20200714114522109).; Quantum enhanced metrology has the potential to go beyond the standard quantum limit and eventually to the ultimate Heisenberg bound.In particular,quantum probes prepared in nonclassical coherent states have recently ...; 关键词：quantum magnetometer silicon quantum qubit nuclear electrical resonance

Enhanced measurement precision with continuous interrogation during dynamical decoupling: 《Chinese Physics B》2024年第3期88-94,共7页张军杜鹏敬雷徐鹏尤力张文献; Project supported by the NSAF(Grant No.U1930201);the National Natural Science Foundation of China(Grant Nos.12274331,91836101,and 91836302);the National Key R&D Program of China(Grant No.2018YFA0306504);Innovation Program for Quantum Science and Technology(Grant No.2021ZD0302100).; Dynamical decoupling(DD)is normally ineffective when applied to DC measurement.In its straightforward implementation,DD nulls out DC signal as well while suppressing noise.This work proposes a phase relay method that ...; 关键词：quantum sensing continuous interrogation quantum magnetometer dynamical decoupling Heisenberg limit

Response optimization of a three-axis sensitive SERF magnetometer for closed-loop operation: 《Chinese Physics B》2024年第2期291-297,共7页周原锐孙永泽汪茜茜秦佳男张雪王言章; Project supported by the National Natural Science Foundation of China(Grant No.42074216).; Most triaxial-vectorial magnetic field measurements with spin-exchange relaxation free(SERF)atomic magnetometer(AM)are based on the quasi-steady-state solution of the Bloch equation.However,the responding speed of the...; 关键词：triaxial-vectorial magnetic field measurement spin-exchange relaxation free atomic magnetometer

A robust method for performance evaluation of the vapor cell for magnetometry: 《Chinese Physics B》2023年第4期283-289,共7页柳治邹升尹凯峰石韬唐钧剑袁珩; Project supported by the National Natural Science Foundation of China(Grant Nos.62173020 and 62103381)。; A robust performance evaluation method for vapor cells used in magnetometers is proposed in this work.The performance of the vapor cell determines the sensitivity of the magnetic measurement,which is the core paramete...; 关键词：evaluation method MAGNETOMETER ROBUST vapor cell

Precision measurement and suppression of low-frequency noise in a current source with double-resonance alignment magnetometers被引量：1: 《Chinese Physics B》2023年第4期35-41,共7页郑锦韬张洋鱼在洋熊志强罗晖汪之国; Project supported by the National Natural Science Foundation of China (Grant Nos. 12174446 and 61671458)。; Low-noise high-stability current sources have essential applications such as neutron electric dipole moment measurement and high-stability magnetometers. Previous studies mainly focused on frequency noise above 0.1 Hz...; 关键词：precision measurement current noise suppression low frequency double-resonance alignment magnetometer

Suppression of laser power error in a miniaturized atomic co-magnetometer based on split ratio optimization: 《Chinese Physics B》2023年第3期180-186,共7页张伟佳范文峰范时秒全伟; the National Natural Science Foundation of China(Grant Nos.61925301 and 62103026).; A miniaturized atomic spin-exchange relaxation-free(SERF)co-magnetometer measures angular velocity using a balanced polarimetry technique which is easily affected by the laser power.A laser power closed-loop control s...; 关键词：atomic gyroscope spin-exchange relaxation-free laser power stability error suppression

Precision measurements with cold atoms and trapped ions: 《Chinese Physics B》2020年第9期51-69,共19页Qiuxin Zhang Yirong Wang Chenhao Zhu Yuxin Wang Xiang Zhang Kuiyi Gao Wei Zhang; Project supported by the National Natural Science Foundation of China(Grant Nos.11522436,11774425,11704408,and 91836106);the Beijing Natural Science Foundation,China(Grant No.Z180013);the Joint Fund of the Ministry of Education of China(Grant No.6141A020333xx);the Research Funds of Renmin University of China(Grant Nos.16XNLQ03 and 18XNLQ15).; Recent progresses on quantum control of cold atoms and trapped ions in both the scientific and technological aspects greatly advance the applications in precision measurement. Thanks to the exceptional controllability...; 关键词：precision measurement optical clock MAGNETOMETER force measurement atomic interferometer

A synthetic optically pumped gradiometer for magnetocardiography measurements被引量：5: 《Chinese Physics B》2020年第4期215-217,共3页Shu-Lin Zhang Ning Cao; Project supported by the National Natural Science Foundation of China(Grant No.61701486)。; Magnetocardiography(MCG)measurement is important for investigating the cardiac biological activities.Traditionally,the extremely weak MCG signal was detected by using superconducting quantum interference devices(SQUID...; 关键词：optically PUMPED magnetometer(OPM) magnetocardiography(MCG) GRADIOMETER

Polarization and fundamental sensitivity of 39K(133Cs)-85Rb-21Ne co-magnetometers: 《Chinese Physics B》2020年第4期272-283,共12页Jian-Hua Liu Dong-Yang Jing Lin Zhuang Wei Quan Jiancheng Fang Wu-Ming Liu; Project supported by the National Key R&D Program of China(Grant No.2016YFA0301500);the National Natural Science Foundation of China(Grant No.61835013);the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant Nos.XDB01020300 and XDB21030300)。; The hybrid optical pumping spin exchange relaxation free(HOPSERF)atomic co-magnetometers make ultrahigh sensitivity measurement of inertia achievable.The wall relaxation rate has a big effect on the polarization and f...; 关键词：hybrid optical PUMPING SPIN exchange RELAXATION free co-magnetometer wall RELAXATION rate

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