77 citations · 183 across the 8 of their papers we have counts for
6 papers · 1 filter
Nonlinear time-reversal interferometry with arbitrary quadratic collective-spin interaction
Zhiyao Hu, Qixian Li, Xuanchen Zhang +3
Atomic nonlinear interferometry has wide applications in quantum metrology and quantum information science. Here we propose a nonlinear time-reversal interferometry scheme with hig…
Spin Squeezing with Arbitrary Quadratic Collective-Spin Interaction
Zhiyao Hu, Qixian Li, Xuanchen Zhang +3
Spin squeezing is vitally important in quantum metrology and quantum information science. The noise reduction resulting from spin squeezing can surpass the standard quantum limit a…
Observation of Exceptional Points in Thermal Atomic Ensembles
Chao Liang, Yuanjiang Tang, An-Ning Xu +1
Exceptional points (EPs) in non-Hermitian systems have recently attracted wide interests and spawned intriguing prospects for enhanced sensing. However, EPs have not yet been reali…
Heisenberg-limited spin squeezing in coupled spin systems
Long-Gang Huang, Xuanchen Zhang, Yanzhen Wang +3
Spin squeezing plays a crucial role in quantum metrology and quantum information science. Its generation is the prerequisite for further applications but still faces an enormous ch…
Mechanical Squeezing via Detuning-Switched Driving
Yaohua Li, An-Ning Xu, Long-Gang Huang +1
Generation of mechanical squeezing has attracted a lot of interest for its nonclassical properties, applications in quantum information, and high-sensitivity measurement. Here we p…
Tunable optical second-order sideband effects in a parity-time symmetric optomechanical system
Xing Xiao, Qinghong Liao, Nanrun Zhou +2
We theoretically investigate the optical second-order sideband generation (OSSG) in an optical parity-time (PT) symmetric system, which consists of a passive cavity trapping the at…