30 citations · 34 across the 6 of their papers we have counts for
17 papers
Quantum-enhanced SU(1,1) interferometry via a Fock state
Shuai Wang, Jian-Dong Zhang, Xue-Xiang Xu
In this paper, we derive a general expression of the quantum Fisher information of an SU(1,1) interferometer with an arbitrary state and a Fock state as inputs by the phase-averagi…
SU(1,1) interferometry with parity measurement
Shuai Wang, Jiandong Zhang
We present a new operator method in the Heisenberg representation to obtain the signal of parity measurement within a lossless SU(1,1) interferometer. Based on this method, it is c…
Phase sensitivity approaching quantum Cramer-Rao bound in a modified SU(1,1) interferometer
Jian-Dong Zhang, Chenglong You, Chuang Li +1
SU(1,1) interferometers, based on the usage of nonlinear elements, are superior to passive interferometers in phase sensitivity. However, the SU(1,1) interferometer cannot make ful…
New kind of asymmetric integration projection operators constructed by entangled state representations and parity measurement
S. Wang, Z. P. Wang, J. D. Zhang
By means of the technique of integration within an ordered product of operators and Dirac notation, we introduce a new kind of asymmetric integration projection operators in entang…
Classical Inputs and Measurements Enable Phase Sensitivity beyond the Shot-Noise Limit
Jian-Dong Zhang, Zi-Jing Zhang, Long-Zhu Cen +2
Coherent-state-based phase estimation is a fruitful testbed for the field of precision measurements since coherent states are robust to decoherence when compared with exotic quantu…
Single-shot Precise Ranging using Twisted Light
Long-Zhu Cen, Zi-Jing Zhang, Jun-Yan Hu +7
Over the past decade, optical orbital angular momentum (OAM) modes were shown to offer advantages in optical information acquisition. Here, we introduce a new scheme for optical ra…