Weak-force sensing with squeezed optomechanics
W Zhao, SD Zhang, A Miranowicz, H Jing - Science China Physics …, 2020 - Springer
We investigate quantum-squeezing-enhanced weak-force sensing via a nonlinear
optomechanical resonator containing a movable mechanical mirror and an optical …
optomechanical resonator containing a movable mechanical mirror and an optical …
Quantum-enhanced interferometry with asymmetric beam splitters
In this paper, we investigate the phase sensitivities in two-path optical interferometry with
asymmetric beam splitters. Here, we present the optimal conditions for the transmission ratio …
asymmetric beam splitters. Here, we present the optimal conditions for the transmission ratio …
Quantum-enhanced SU (1, 1) interferometry via a Fock state and an arbitrary state
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-averaging …
1) interferometer with an arbitrary state and a Fock state as inputs by the phase-averaging …
Quantum Fisher Information Gap for Systems with Nonlinear Hamiltonians
B Liu, YX Huang, XG Wang - Communications in Theoretical …, 2019 - iopscience.iop.org
Quantum Fisher information (QFI) gap characterizes the stability of QFI to space directions.
We study the QFI distributions and QFI gap for quantum states generated from nonlinear …
We study the QFI distributions and QFI gap for quantum states generated from nonlinear …