5 citations · 7 across the 6 of their papers we have counts for
6 papers
Postselected amplification and photon recycling applied to optical sensing of magnetic fields
Yazhi Niu, Jialin Li, Lupei Qin +1
We apply the combined technique of postselected amplification and photon-recycling to an optical setup of magnetic field precision measurement. We propose two recycling schemes and…
Optical phase estimation via homodyne measurement in the presence of saturation effect of photodetectors
Jialin Li, Yazhi Niu, Lupei Qin +1
For optical phase estimation via homodyne measurement, we generalize the theory from detector's linear to nonlinear response regime, which accounts for the presence of saturation e…
Postselected amplification applied to Mach-Zehnder-interferometer for phase shift measurement of optical coherent states
J. L. Li, Y. Z. Niu, L. P. Qin +1
We propose a postselected amplification (PSA) scheme for phase shift measurement of optical coherent states when passing through the Mach-Zehnder-interferometer (MZI). Different fr…
Postselected amplification applied to atomic magnetometers
Yazhi Niu, Jialin Li, Lupei Qin +1
We propose to embed the atomic magnetometer (AM) into an optical Mach-Zehnder interferometer (MZI). We analyze the effect of amplification of the Faraday rotation (FR) angle of the…
Enhanced super-Heisenberg scaling precision by nonlinear coupling and postselection
Lupei Qin, Jialin Li, Yazhi Niu +1
In quantum precision metrology, the famous result of Heisenberg limit scaling as (with the number of probes) can be surpassed by considering nonlinear coupling measuremen…
Quantum-coherence-free precision metrology by means of difference-signal amplification
Jialin Li, Yazhi Niu, Xinyi Wang +2
The novel weak-value-amplification (WVA) scheme of precision metrology is deeply rooted in the quantum nature of destructive interference between the pre- and post-selection states…