2 papers
quant-ph2026
Enhanced Atomic Magnetometry with a Pinched Spin State
Tingxuan Guo, Xiangyu Li, Yang Li +1
The sensitivity of an atomic spin sensor is fundamentally constrained by the quantum Fisher information (QFI) of the probe state. The pinched state, , has an …
physics.optics2026
FID Magnetometer Based on Paraffin-Coated Planar Reflective Multipass Cells
Xiangyu Li, Tingxuan Guo, Yang Li +1
We demonstrate a paraffin-coated planar reflective multipass vapor cell for compact optical atomic magnetometry. The cell has an internal volume of $12 \times 12 \times 8~\mathrm{m…