31 citations · 112 across the 15 of their papers we have counts for
8 papers · 1 filter
Deterministic super-resolved estimation towards angular displacements based upon a Sagnac interferometer and parity measurement
Jian-Dong Zhang, Zi-Jing Zhang, Long-Zhu Cen +2
Super-resolved angular displacement estimation is of crucial significances for quantum information process and optical lithography. Here we report on and experimentally demonstrate…
Sub-Heisenberg-limited nonlinear phase estimation: Parity measurement approaches the quantum Cramér-Rao bound
Jian-Dong Zhang, Zi-Jing Zhang, Long-Zhu Cen +2
Quantum-enhanced phase estimation paves the way to ultra-precision sensing and is of great realistic significance. In this paper we investigate theoretically the estimation of a se…
Angular displacement estimation of Heisenberg scaling: Tunable squeezed Bell state via the enhancement of spin and orbital angular momenta
Jian-Dong Zhang, Zi-Jing Zhang, Long-Zhu Cen +1
We demonstrate an angular momentum-enhanced protocol that permits an angular displacement estimation by using tunable squeezed Bell state and parity detection. We consider the reso…
Quantum process tomography with Heisenberg scaling based on Gaussian state and binary detection
Jian-Dong Zhang, Zi-Jing Zhang, Long-Zhu Cen +1
We propose a quantum process tomography scheme that utilizes two-mode squeezed vacuum to realize the parameter estimation with Heisenberg scaling. The objective is to estimate a ro…
Toward demonstrating super-sensitive angular displacement estimation by using orbital angular momentum coherent state and SU(1,1)-SU(2) hybrid interferometer
Jian-Dong Zhang, Zi-Jing Zhang, Long-Zhu Cen +2
In this paper, we propose a protocol for angular displacement estimation based upon orbital angular momentum coherent state and a SU(1,1)-SU(2) hybrid interferometer. This interfer…
Optimal binary strategy for angular displacement estimation based upon fidelity appraisal
Jian-Dong Zhang, Zi-Jing Zhang, Long-Zhu Cen +2
We report on an optimal binary strategy for angular displacement estimation. The measuring system is a modified Mach-Zehnder interferometer fed by a coherent state carrying orbital…
Reconstruction of multiple non-line-of-sight objects using back projection based on ellipsoid mode decomposition
Chenfei Jin, Jiaheng Xie, Siqi Zhang +2
Non-line-of-sight imaging has attracted more attentions for its wide applications.Even though ultrasensitive cameras or detectors with high time-resolution are available, current b…
Orbital-angular-momentum-enhanced estimation of sub-Heisenberg-limited angular displacement with two-mode squeezed vacuum and parity detection
Jiandong Zhang, Zijing Zhang, Longzhu Cen +1
We report on an orbital-angular-momentum-enhanced scheme for angular displacement estimation based on two-mode squeezed vacuum and parity detection. The sub-Heisenberg-limited sens…