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quant-ph2020★ 28 cited
Nonlinear phase estimation enhanced by an actively correlated Mach-Zehnder interferometer
Gao-Feng Jiao, Keye Zhang, L. Q. Chen +2
A nonlinear phase shift is introduced to a Mach-Zehnder interferometer (MZI), and we present a scheme for enhancing the phase sensitivity. In our scheme, one input port of a standa…
quant-ph2020
Angular displacements estimation enhanced by squeezing and parametric amplification
Gao-Feng Jiao, Qiang Wang, L. Q. Chen +2
We theoretically study the angular displacements estimation based on a modified Mach-Zehnder interferometer (MZI), in which two optical parametric amplifiers (PAs) are introduced i…