Wei Ji          CV_WeiJi-2507.pdf
Researcher, School of Physics, Peking University
Peking University Boya Young Fellow

Research focuses on precision magnetic measurements and precision tests of the Standard Model in particle physics, including searches for new interactions beyond the Standard Model and dark matter. Work involves developing polarized atomic magnetometers and novel levitated ferromagnetic sensors, with applications in particle physics and biomedical physics.

Recent achievements include:

• The first proposed spin-source design with soft-magnetic-ring-shielded hard-magnetic structures, adopted by multiple international teams including Princeton University

• Establishment of the most stringent experimental limits to date on new interactions between electron-electron, electron-proton and neutron-neutron systems using ultra-sensitive atomic magnetometers and high-density spin sources

• The strongest constraints on the coupling between feV-scale (10^-15 eV) ultralight axion-like dark matter and neutrons, surpassing astronomical limits

Research findings have been published in Physical Review Letters, Science Advances, and Nature Communications. Invited to contribute a comprehensive review on new interaction searches for Reviews of Modern Physics.

For details: Google Scholar profile at
https://scholar.google.com/citations?user=FwovnfIAAAAJ&hl=en