3 papers
quant-ph2025
Phase estimation via photon subtraction at the output of the hybrid interferometer
Qisi Zhou, Tao Jiang, Qingqian Kang +4
The hybrid interferometer integrating an optical parametric amplifier and a beam splitter has the potential to outperform the SU(1,1) interferometer. However, photon loss remains a…
quant-ph2025
Phase sensitivity via photon-subtraction operations inside Mach-Zehnder interferometer
Qisi Zhou, Qinqian Kang, Tao Jiang +4
Based on the conventional Mach-Zehnder interferometer, we propose a metrological scheme to improve phase sensitivity. In this scheme, we use a coherent state and a squeezed vacuum…
quant-ph2024
Phase sensitivity for an SU(1,1) interferometer via multiphoton subtraction at the output port
Tao Jiang, Zekun Zhao, Qingqian Kang +4
In the field of quantum precision measurement, enhancing phase sensitivity is crucial for various applications, including quantum metrology and quantum sensing technologies. We the…