30 citations · 30 across the 1 of their papers we have counts for
3 papers
quant-ph2021
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…
quant-ph2021
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…
quant-ph2020★ 30 cited
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…