论文标题
具有二次探测器的两部分光场的非古典性和纠缠标准II：基于概率的标准
Non-classicality and entanglement criteria for bipartite optical fields characterized by quadratic detectors II: Criteria based on probabilities
论文作者
论文摘要
使用几种方法得出了基于实验光关或理论光子数分布的概率的许多非古典性标准。揭示了派生标准之间的关系，并确定了基本标准。它们分为参数系统，从不同的角度（“局部”非经典性，光子相关性的成对特征等）允许分析非经典性。考虑到它们的结构，标准可以分为解决非古典性的能力不同的群体。讨论了使用Lee非经典性深度和非经典性计数参数对非经典性进行定量。使用的字段模式的使用数量被标识为可能导致意外结果的重要参数。得出了将光（光子数）分布到其S顺序形式的适当的线性转换，该形式得出了确定非经典性深度所需的。为了进行比较，派生的标准既应用于双子束的实验光取直方图，又应用了具有不同噪声水平的重建光子数分布。
Numerous non-classicality criteria based on the probabilities of experimental photocount or theoretical photon-number distributions are derived using several approaches. Relations among the derived criteria are revealed and the fundamental criteria are identified. They are grouped into parametric systems that allow the analysis of the non-classicality from different points of view ('local' non-classicality, pairwise character of photon correlations, etc.). Considering their structure, the criteria may be divided into groups that differ in the power to resolve the non-classicality. Quantification of the non-classicality using the Lee non-classicality depth and the non-classicality counting parameter is discussed. The used number of field's modes is identified as an important parameter that may cause unexpected results. An appropriate linear transformation of a photocount (photon-number) distribution into its s-ordered form, needed for the determination of the non-classicality depth, is derived. For comparison, the derived criteria are applied both to an experimental photocount histogram of a twin beam and the reconstructed photon-number distributions with different levels of the noise.
