论文标题
非高斯量子转向的同伴检测
Homodyne detection of non-Gaussian quantum steering
论文作者
论文摘要
量子相关性是量子技术当前发展的核心。纠缠和转向的认证协议，适用于连续可变的非高斯国家很少，从实验的角度来看，通常要求高度要求。我们提出了一项基于Fisher信息的协议，以通过同基检测目睹一般连续变化的两分国家的转向。事实证明，这与在场景中检测非高斯转向有关，在这种情况下，基于高斯特征（例如协方差矩阵）的证人显示出失败。
Quantum correlations are at the core of current developments in quantum technologies. Certification protocols of entanglement and steering, suitable for continuous-variable non-Gaussian states are scarce and generally highly demanding from an experimental point of view. We propose a protocol based on Fisher information for witnessing steering in general continuous-variable bipartite states, through homodyne detection. It proves to be relevant for the detection of non-Gaussian steering in scenarios where witnesses based on Gaussian features like the covariance matrix are shown to fail.
