2 papers
quant-ph2018
Phase estimation for an SU(1,1) interferometer in the presence of phase diffusion and photon losses
Xiu-Ling Hu, Dong Li, L. Q. Chen +3
We theoretically study the quantum Fisher information (QFI) of the SU(1,1) interferometer with phase shifts in two arms taking account of realistic noise effects. A generalized pha…
quant-ph2016
Intramode correlations enhanced phase sensitivities in an SU(1,1) interferometer
Qian-Kun Gong, Dong Li, Chun-Hua Yuan +2
We theoretically derive the lower and upper bounds of quantum Fisher information (QFI) of an SU(1,1) interferometer whatever the input state chosen. According to the QFI, the cruci…