118 citations · 447 across the 17 of their papers we have counts for
17 papers
Ultimate precision limit of SU(2) and SU(1,1) interferometers in noisy metrology
Jie Zeng, Dong Li, L. Q. Chen +2
The quantum Fisher information (QFI) in SU(2) and SU(1,1) interferometers was considered, and the QFI-only calculation was overestimated. In general, the phase estimation as a two-…
Enhanced phase sensitivity in a Mach-Zehnder interferometer via photon recycling
Dong Li, Chun-Hua Yuan, Xiaoping Ma +4
We propose an alternative scheme for phase estimation in a Mach-Zehnder interferometer (MZI) with photon recycling. It is demonstrated that with the same coherent-state input and h…
Scattering-lens based quantum imaging beyond shot noise
Dong Li, Yao Yao
The scheme of optical imaging using scattering lens can provide a resolution beyond the classical optical diffraction limit with a coherent-state input. Nevertheless, due to the sh…
Excess-noise suppression for a squeezed state propagating through random amplifying media via wave-front shaping
Dong Li, Song Sun, Yao Yao
After propagating through a random amplifying medium, a squeezed state commonly shows excess noise above the shot-noise level. Since large noise can significantly reduce the signal…
Anomalies of weight-based coherence measure and mixed maximally coherent states
Yao Yao, Dong Li, C. P. Sun
As an analogy of best separable approximation (BSA) in the framework of entanglement theory, here we concentrate on the notion of best incoherent approximation, with application to…
Modulating quantum fluctuations of scattered lights in disordered media via wavefront shaping
Dong Li, Yao Yao
After multiple scattering of quadrature-squeezed lights in a disordered medium, the quadrature amplitudes of the scattered modes present an excess noise above the shot-noise level…