Short Biography
Conduct theoretical and methodological research on ultra-high sensitivity extremely weak magnetic field measurement based on the atomic spin SERF effect, aiming to push the limits of ultra-sensitive detection of extremely weak magnetic fields. This involves making breakthroughs in key technologies such as atomic spin polarization and precession detection, low-noise composite magnetic shielding, and magnetic field control. A state-of-the-art, ultra-high-sensitivity magnetometer for extremely weak magnetic fields has been developed. This device achieves top-tier performance as documented in international publications and is now transitioning to application.
Research Area
(1) Enhancing sensitivity in ultra-high sensitivity ultra-weak magnetic field measurements by overcoming multi-source noise interference.
(2) Developing next-generation ultra-low noise magnetic shields by advancing superconducting materials and elucidating their intrinsic noise mechanisms.
(3) Creating advanced soft magnetic materials (ferrites, amorphous/nanocrystalline, composites) and studying magnetic noise suppression in multi-physical fields.
(4) Establishing novel principles for precise spin manipulation and detection, enabling the generation of highly compressed quantum states (orthogonal squeezed states and polarized squeezed light).
(5) Searching for new physics, including dark matter signatures and atomic/molecular electric dipole moments, using these ultra-sensitive magnetometers.
Courses
(1) Introduction to Quantum Precision Measurement
(2) Quantum Precision Measurement Experiment
Papers & Books
(1) Ma D, Lu J, Fang X, et al. Parameter modeling analysis of a cylindrical ferrite magnetic shield to reduce magnetic noise[J]. IEEE Transactions on Industrial Electronics, 2021, 69(1): 991-998.
(2) Ma D, Lu J, Fang X, et al. A novel low-noise Mu-metal magnetic shield with winding shape[J]. Sensors and Actuators A: Physical, 2022, 346: 113884.
(3) Ma D, Ding M, Lu J, et al. Magnetic noise calculation of mu-metal shields at extremely low frequencies for atomic devices[J]. Journal of Physics D: Applied Physics, 2020, 54(2): 025004.
(4) Chen Kun,...,Ma D*.Processing and properties of binder-modified large-scale YBCO magnetic shields for ultra-low magnetic field environments[J].Materials Today Advances, 2025, 27, 100613.
(5) Xing Z, Ma D*, et al. Effect of Optical Nonorthogonality on Dynamic Response in Dual-Beam Atomic Magnetometer, 2025, 74, 7000510.
