455 citations · 676 across the 6 of their papers we have counts for
6 papers
Entangling and squeezing atoms by weak measurement
Mingfeng Wang, Weizhi Qu, Han Bao +2
A weak measurement approach is proposed to entangle and squeeze atoms. We show that even for very small coupling strength between light and atoms, one can achieve large squeezing u…
Spatial multiplexing of squeezed light by coherence diffusion
Jian Sun, Weizhi Qu, Eugeniy Mikhailov +3
Spatially splitting nonclassical light beams is in principle prohibited due to noise contamination during beam splitting. We propose a platform based on thermal motion of atoms to…
Sub-Hertz resonance by weak measurement
Weizhi Qu, Jian Sun, Shenchao Jin +3
Weak measurement (WM) with state pre- and post-selection can amplify otherwise undetectable small signals and thus promise great potentials in precision measurements. Although freq…
Measurements with prediction and retrodiction on the collective spin of 10^{11} atoms beat the standard quantum limit
Han Bao, Junlei Duan, Xingda Lu +10
Quantum probes using uncorrelated particles give a limit on the measurement sensitivity referred to as the standard quantum limit (SQL). The SQL, however, can be overcome by ex…
Anti-Parity-Time Symmetric Optics via Flying Atoms
Peng Peng, Wanxia Cao, Ce Shen +4
The recently-developed notion of 'parity-time (PT) symmetry' in optical systems with a controlled gain-loss interplay has spawned an intriguing way of achieving optical behaviors t…
Two-axis-twisting spin squeezing by multi-pass quantum erasure
Mingfeng Wang, Weizhi Qu, Pengxiong Li +3
Many-body entangled states are key elements in quantum information science and quantum metrology. One important problem in establishing a high degree of many-body entanglement usin…