189 citations · 1k across the 43 of their papers we have counts for
7 papers · 2 filters
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…
Phase estimation of phase shifts in two arms for an SU(1,1) interferometer with coherent and squeezed vacuum states
Qian-Kun Gong, Dong Li, Chun-Hua Yuan +2
We theoretically present the quantum Cramér-Rao bounds (QCRB) of an SU(1,1) interferometer for Gaussian states input with and without the internal photonic losses. The phase shifts…
Resonance interaction of two dipoles in optically active surroundings
Qi-Zhang Yuan, Chun-Hua Yuan, Weiping Zhang
We study the resonance interaction between two quantum electric dipoles immersed in optically active surroundings. Quantum electrodynamics is employed to deal with dipole-vacuum in…
Characterizing micro-macro transitions with an atomic-vapor-based linear optical amplifier
Zhifan Zhou, Ulrich Vogl, Ryan T. Glasser +4
Fundamentally, the dynamics of micro-macro transitions is instrumental to understanding the process of quantum-to-classical transitions; technologically, it can also facilitate the…
Phase sensitivity at the Heisenberg limit in an SU(1,1) interferometer via parity detection
Dong Li, Bryan T. Gard, Yang Gao +4
We theoretically investigate the phase sensitivity with parity detection on an SU(1,1) interferometer with a coherent state combined with a squeezed vacuum state. This interferomet…
Effects of losses in the hybrid atom-light interferometer
Zhao-Dan Chen, Chun-Hua Yuan, Hong-Mei Ma +4
Enhanced Raman scattering can be obtained by injecting a seeded light field which is correlated with the initially prepared collective atomic excitation. This Raman amplification p…
Atom-light superposition oscillation and Ramsey-like atom-light interferometer
Cheng Qiu, Shuying Chen, L. Q. Chen +4
Coherent wave splitting is crucial in interferometers. Normally, the waves after this splitting are of the same type. But recent progress in interaction between atom and light has…