Non-classical correlations in optical beams offer an unprecedented opportunity for
surpassing the conventional limits of sensitivity and resolution in optical measurements and …

We experimentally demonstrate quantum enhanced resolution in confocal fluorescence
microscopy exploiting the nonclassical photon statistics of single nitrogen-vacancy color …

We theoretically study the phase sensitivity of an SU (1, 1) interferometer, in which the phase
shift is induced by a Kerr medium, together with a coherent state input and homodyne …

There has been much recent interest in quantum metrology for applications to sub-Raleigh
ranging and remote sensing such as in quantum radar. For quantum radar, atmospheric …

Classically, the resolution of optical measurements is limited by the Rayleigh limit and their
sensitivity by the shot noise limit. However, non-classical measurements can surpass these …

Phase super-sensitivity is obtained when the sensitivity in a phase measurement goes
beyond the quantum shot noise limit, whereas super-resolution is obtained when the …

We construct an experimental measurement system for rotation vibration signal detection
using the orbital angular momentum (OAM) of light in a Sagnac interferometer. Inputting light …

Quantum speed limits (QSLs) impose fundamental constraints on the evolution speed of
quantum systems. For systems with time-independent Hamiltonians, the QSLs are intricately …

Optimal measurement scheme with an efficient data processing is important in quantum-
enhanced interferometry. Here we prove that for a general binary-outcome measurement …

Quantum-enhanced phase estimation paves the way for precision measurements and is of
great realistic significance. In this paper we theoretically investigate the second-order …