28 citations · 69 across the 10 of their papers we have counts for
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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…
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…