We study the generation of hybrid entanglement in a one-dimensional quantum walk. In
particular, we explore the preparation of maximally entangled states between position and …

With the recent exponential developments of high-speed optical communications, traditional
optical communications systems are showing their limitations. Over the past decade, the …

We theoretically study the angular rotation displacement based on the hybrid
interferometers, which contain a beam splitter (BS) and an optical parameter amplication …

Most of the studies have focused on the single-angular displacement estimation, while the
multiple angular displacement estimation in ideal and noisy scenarios is still elusive. In this …

Super-resolved angular displacement estimation is of crucial significance to the field of
quantum information processing. Here we report an estimation protocol based on a Sagnac …

We theoretically study angular displacement estimation based on a modified Mach-Zehnder
interferometer (MZI), in which two optical parametric amplifiers (PAs) are introduced into two …

The Hanbury Brown and Twiss (HBT) interferometer was proposed to observe intensity
correlations of starlight to measure a star's angular diameter. As the intensity of light that …

Supersensitive phase estimation was and is one of the principal goals in the field of
precision measurements. In this paper, we study a power-recycled tri-port interferometer that …

Experimental limitations such as optical loss and noise have prevented entanglement-
enhanced measurements from demonstrating a significant quantum advantage in sensitivity …

The performance of two-mode squeezed vacuum state quantum lidar that depends on
system transmission losses is studied. The sensitivity and resolution of the system with a …