4 papers · 1 filter
Observing Bell Inequality Violation Beyond the Qubit Bound in a Spinor Bose--Einstein Condensate
Wenxin Xu, Junshuang Hu, Guillem Müller-Rigat +4
Correlations allowed by quantum mechanics can defy any classical explanation, with Bell nonlocality standing as their most profound and operationally powerful manifestation. While…
Optimal Control of Spin Squeezing in 2D Finite-Range Interacting Systems
Ang Li, Ling-Na Wu, Li You
Spin squeezing serves as both a fundamental witness of quantum entanglement and a critical resource for quantum-enhanced metrology. While generating substantial spin squeezing in f…
Detection of entangled states supported by reinforcement learning
Jia-Hao Cao, Feng Chen, Qi Liu +4
Discrimination of entangled states is an important element of quantum enhanced metrology. This typically requires low-noise detection technology. Such a challenge can be circumvent…
Cyclic nonlinear interferometry with entangled non-Gaussian spin states
Qi Liu, Tian-Wei Mao, Ming Xue +2
We propose an efficient nonlinear readout scheme for entangled non-Gaussian spin states (ENGSs) based on the intrinsic quasi-cyclic dynamics of interacting spin-1/2 systems. We foc…