论文标题
与骨量子场多模态的纠缠和光学非古质性有关
Relating the Entanglement and Optical Nonclassicality of Multimode States of a Bosonic Quantum Field
论文作者
论文摘要
骨骼量子场状态状态的量子性质在其纠缠，连贯性或光学非经典性中表现出来，它们都是量子计算或计量学的资源。我们提供了与光学非古老性指标有关的定量和可计算界限。这些界限表明，强烈纠缠的状态必须在光学上是强烈的非古典性。作为应用程序，我们推断纠缠的强度强度，可以用光学上的非古典状态撞击光束分离器上。对于高斯国家，我们分析了对数负性与称为“正交相干量表”的特定非经典性证人之间的联系。
The quantum nature of the state of a bosonic quantum field manifests itself in its entanglement, coherence, or optical nonclassicality which are each known to be resources for quantum computing or metrology. We provide quantitative and computable bounds relating entanglement measures with optical nonclassicality measures. These bounds imply that strongly entangled states must necessarily be strongly optically nonclassical. As an application, we infer strong bounds on the entanglement that can be produced with an optically nonclassical state impinging on a beam splitter. For Gaussian states, we analyze the link between the logarithmic negativity and a specific nonclassicality witness called "quadrature coherence scale".
