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6 papers
The effect of Quantum Statistics on the sensitivity in an SU(1,1) interferometer
Jie Zeng, Yingxing Ding, Mengyao Zhou +5
We theoretically study the effect of quantum statistics of the light field on the quantum enhancement of parameter estimation based on cat state input the SU(1,1) interferometer. T…
Quantum non-demolition measurement based on an SU(1,1)-SU(2)-concatenated atom-light hybrid interferometer
Gao-Feng Jiao, Keye Zhang, L. Q. Chen +2
Quantum non-demolition (QND) measurement is an important tool in the field of quantum information processing and quantum optics. The atom-light hybrid interferometer is of great in…
Effects of losses on the sensitivity of an actively correlated Mach-Zehnder interferometer
Qiang Wang, Gao-Feng Jiao, Zhifei Yu +3
We theoretically studied the quantum Cramér-Rao bound of an actively correlated Mach-Zehnder interferometer (ACMZI), where the quantum Fisher information obtained by the phase-aver…
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…
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…
A novel two-mode squeezed light based on double-pump phase-matching
Xuan-Jian He, Jun Jia, Gao-Feng Jiao +3
A novel two-mode non-degenerate squeezed light is generated based on a four-wave mixing (4WM) process driven by two pump fields crossing at a small angle. By exchanging the roles o…