168 citations · 176 across the 5 of their papers we have counts for
5 papers
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 …
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…
Zero-field spin noise spectrum of an alkali vapor with strong spin-exchange coupling
Ya Wen, Xiangyu Li, Guiying Zhang +1
We study the zero-field optical spin noise spectra (OSN) for a thermal state hot 87Rb vapor with strong spin exchange coupling. Our main findings are: (1) The OSN spectrum consists…
Observing zero-field spin dynamics with spin noise in a pi-pulse modulated field
Guiying Zhang, Ya Wen, Jian Qiu +1
Spin noise spectroscopic study of spin dynamics in a zero magnetic field is commonly frustrated by the dominating 1/f noise. We show that in a pi-pulse modulated magnetic field, sp…
Measurements with prediction and retrodiction on the collective spin of 10^{11} atoms beat the standard quantum limit
Han Bao, Junlei Duan, Xingda Lu +10
Quantum probes using uncorrelated particles give a limit on the measurement sensitivity referred to as the standard quantum limit (SQL). The SQL, however, can be overcome by ex…