论文标题
多光子钟形型不平等：一种发掘连续变量量子光学系统非本地性的工具
Multiphoton Bell-type inequality: a tool to unearth nonlocality of continuous variable quantum optical systems
论文作者
论文摘要
我们考虑多光子钟形的不平等，以研究四模式连续变量系统中的非局部性，该系统超出了两光子状态，可以应用于具有波动光子数量的混合状态和混合状态。我们将不平等应用于多种状态，例如纯净和混合的高斯州（包括挤压的热状态）和非高斯州。我们将光束拆分器视为泄漏的模型，并表明不平等也能够检测到嘈杂的高斯州的非经典性。最后，我们研究了配对状态和纠缠相干状态的非局部性，这是非古典，非高斯州的重要例子。
We consider a multiphoton Bell-type inequality to study nonlocality in four-mode continuous variable systems, which goes beyond two-photon states and can be applied to mixed as well as states with fluctuating photon number. We apply the inequality to a wide variety of states such as pure and mixed Gaussian states (including squeezed thermal states) and non-Gaussian states. We consider beam splitters as a model for leakage and show that the inequality is able to detect nonclassicality of noisy Gaussian states as well. Finally, we investigate nonlocality in pair-coherent states and entangled coherent states, which are prominent examples of nonclassical, non-Gaussian states.
