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quant-ph2025
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…
quant-ph2025★ 2 cited
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…