13 citations · 13 across the 2 of their papers we have counts for
7 papers · 1 filter
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…
Double-dot interferometer for quantum measurement of Majorana qubits and stabilizers
Kai Zhou, Cheng Zhang, Lupei Qin +1
Motivated by the need of quantum measurement of Majorana qubits and surface-code stabilizers, we analyze the performance of a double-dot interferometer under the influence of envir…
Transport Signatures of a Majorana Qubit and Read-out-induced Dephasing
Lupei Qin, Xin-Qi Li, Alexander Shnirman +1
Motivated by recent proposals of Majorana qubits and the read-out of their quantum state we investigate a qubit setup formed by two parallel topological wires shunted by a supercon…